diff --git a/.efrocachemap b/.efrocachemap
index e3a69f13..52843119 100644
--- a/.efrocachemap
+++ b/.efrocachemap
@@ -421,13 +421,13 @@
   "build/assets/ba_data/audio/zoeOw.ogg": "https://files.ballistica.net/cache/ba1/74/be/fe45a8417e95b6a2233c51992a26",
   "build/assets/ba_data/audio/zoePickup01.ogg": "https://files.ballistica.net/cache/ba1/48/ab/8cddfcde36a750856f3f81dd20c8",
   "build/assets/ba_data/audio/zoeScream01.ogg": "https://files.ballistica.net/cache/ba1/2b/46/8aedfa8741090247f04eb9e6df55",
-  "build/assets/ba_data/data/langdata.json": "https://files.ballistica.net/cache/ba1/3c/43/4b7614cd5d9db1c57a77a64271f6",
+  "build/assets/ba_data/data/langdata.json": "https://files.ballistica.net/cache/ba1/7a/57/60b86e6ab02f04afe4af903cf6cb",
   "build/assets/ba_data/data/languages/arabic.json": "https://files.ballistica.net/cache/ba1/83/87/06fc7255ebf8a895ad37d2dfa13d",
   "build/assets/ba_data/data/languages/belarussian.json": "https://files.ballistica.net/cache/ba1/57/68/d03a19b9035cfae7cdc5377d889a",
   "build/assets/ba_data/data/languages/chinese.json": "https://files.ballistica.net/cache/ba1/25/f1/d88c72fbeeb121340244bc935df4",
   "build/assets/ba_data/data/languages/chinesetraditional.json": "https://files.ballistica.net/cache/ba1/50/4c/4fb39f065b1a2f0320026a2e1b92",
   "build/assets/ba_data/data/languages/croatian.json": "https://files.ballistica.net/cache/ba1/76/65/32c67af5bd0144c2d63cab0516fa",
-  "build/assets/ba_data/data/languages/czech.json": "https://files.ballistica.net/cache/ba1/54/a2/91da0eec3c0820602d779ef24d10",
+  "build/assets/ba_data/data/languages/czech.json": "https://files.ballistica.net/cache/ba1/f3/ce/219840946cb8f9aa6d3e25927ab3",
   "build/assets/ba_data/data/languages/danish.json": "https://files.ballistica.net/cache/ba1/3f/d6/9080783d5c9dcc0af737f02b6f1e",
   "build/assets/ba_data/data/languages/dutch.json": "https://files.ballistica.net/cache/ba1/22/b4/4a33bf81142ba2befad14eb5746e",
   "build/assets/ba_data/data/languages/english.json": "https://files.ballistica.net/cache/ba1/d1/6e/8899211693c20d3b00fc198f58c6",
@@ -443,9 +443,9 @@
   "build/assets/ba_data/data/languages/italian.json": "https://files.ballistica.net/cache/ba1/ac/03/2e4a2322a96e3d6d5e2aa3ae327d",
   "build/assets/ba_data/data/languages/korean.json": "https://files.ballistica.net/cache/ba1/bd/c1/3f8632adda5517059323d928f192",
   "build/assets/ba_data/data/languages/malay.json": "https://files.ballistica.net/cache/ba1/83/25/62ce997fc70704b9234c95fb2e38",
-  "build/assets/ba_data/data/languages/persian.json": "https://files.ballistica.net/cache/ba1/de/7d/92275d1af328807fd15253a5b689",
+  "build/assets/ba_data/data/languages/persian.json": "https://files.ballistica.net/cache/ba1/f4/1d/3524c00d2e8e8c4613ebdf1493b4",
   "build/assets/ba_data/data/languages/polish.json": "https://files.ballistica.net/cache/ba1/a6/a7/4a9a289fa1b97847c9a2578c112b",
-  "build/assets/ba_data/data/languages/portuguese.json": "https://files.ballistica.net/cache/ba1/62/47/3e2ed97e77cce5e2defea666b9aa",
+  "build/assets/ba_data/data/languages/portuguese.json": "https://files.ballistica.net/cache/ba1/99/b2/7c598c90fd522132af3536aef0ee",
   "build/assets/ba_data/data/languages/romanian.json": "https://files.ballistica.net/cache/ba1/ae/eb/dd54f65939c2facc6ac50c117826",
   "build/assets/ba_data/data/languages/russian.json": "https://files.ballistica.net/cache/ba1/9a/c0/a2ff20e53f7d22037a9c8211a362",
   "build/assets/ba_data/data/languages/serbian.json": "https://files.ballistica.net/cache/ba1/d7/45/2dd72ac0e51680cb39b5ebaa1c69",
@@ -4068,26 +4068,26 @@
   "build/assets/windows/Win32/ucrtbased.dll": "https://files.ballistica.net/cache/ba1/2d/ef/5335207d41b21b9823f6805997f1",
   "build/assets/windows/Win32/vc_redist.x86.exe": "https://files.ballistica.net/cache/ba1/b0/8a/55e2e77623fe657bea24f223a3ae",
   "build/assets/windows/Win32/vcruntime140d.dll": "https://files.ballistica.net/cache/ba1/86/5b/2af4d1e26a1a8073c89acb06e599",
-  "build/prefab/full/linux_arm64_gui/debug/ballisticakit": "https://files.ballistica.net/cache/ba1/63/44/27519c2a85ba72d2a4e338ed4650",
-  "build/prefab/full/linux_arm64_gui/release/ballisticakit": "https://files.ballistica.net/cache/ba1/3a/33/047dbfc05746818a9dfbc7668314",
-  "build/prefab/full/linux_arm64_server/debug/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/0b/64/e2da499eeba056e64bfce5dab20a",
-  "build/prefab/full/linux_arm64_server/release/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/76/74/619b268bc7f8609a6f477fc9e6f6",
-  "build/prefab/full/linux_x86_64_gui/debug/ballisticakit": "https://files.ballistica.net/cache/ba1/8d/36/fbde0a1a43724a97e6478e27b3ab",
-  "build/prefab/full/linux_x86_64_gui/release/ballisticakit": "https://files.ballistica.net/cache/ba1/b0/82/021314e49a35124a1d52f8f81c09",
-  "build/prefab/full/linux_x86_64_server/debug/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/75/3b/0024994a18df5b10272161903d5f",
-  "build/prefab/full/linux_x86_64_server/release/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/f6/ca/a4db280a528841bccb7aaf3baa63",
-  "build/prefab/full/mac_arm64_gui/debug/ballisticakit": "https://files.ballistica.net/cache/ba1/cb/64/d43244656d4310fe0145bef54627",
-  "build/prefab/full/mac_arm64_gui/release/ballisticakit": "https://files.ballistica.net/cache/ba1/44/22/737933ac2d7caaba5cd5fd13d88f",
-  "build/prefab/full/mac_arm64_server/debug/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/6c/77/715843f46cc2c3c1bdc0e21b7b55",
-  "build/prefab/full/mac_arm64_server/release/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/a4/48/33d74871b0c39e60064d0ce267cf",
-  "build/prefab/full/mac_x86_64_gui/debug/ballisticakit": "https://files.ballistica.net/cache/ba1/a9/61/26f4c31c7b537e2fb557c4d87c0c",
-  "build/prefab/full/mac_x86_64_gui/release/ballisticakit": "https://files.ballistica.net/cache/ba1/19/a2/888b33bcdc7f9d87dd2d1ce4c2fd",
-  "build/prefab/full/mac_x86_64_server/debug/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/67/e0/be7233baecdbe2acc133a7e4b596",
-  "build/prefab/full/mac_x86_64_server/release/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/ec/9f/ba7a1e3d7c34d7a3392f31a9fabb",
-  "build/prefab/full/windows_x86_gui/debug/BallisticaKit.exe": "https://files.ballistica.net/cache/ba1/22/d7/105197eb744fb4ee35bc99af236e",
-  "build/prefab/full/windows_x86_gui/release/BallisticaKit.exe": "https://files.ballistica.net/cache/ba1/1c/8c/727910c0c52e8f30c6262e57bd61",
-  "build/prefab/full/windows_x86_server/debug/dist/BallisticaKitHeadless.exe": "https://files.ballistica.net/cache/ba1/ab/79/6a873cc823621d63f79c2a0256ed",
-  "build/prefab/full/windows_x86_server/release/dist/BallisticaKitHeadless.exe": "https://files.ballistica.net/cache/ba1/1f/5a/7a8a2804f0b49076e01081075a49",
+  "build/prefab/full/linux_arm64_gui/debug/ballisticakit": "https://files.ballistica.net/cache/ba1/af/b7/62892190ebe1627f6754cf9b8f81",
+  "build/prefab/full/linux_arm64_gui/release/ballisticakit": "https://files.ballistica.net/cache/ba1/5c/1a/ca899e8d4ed6bc687beb0e38dcd6",
+  "build/prefab/full/linux_arm64_server/debug/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/41/83/dd4dca131a728b0895132fed9460",
+  "build/prefab/full/linux_arm64_server/release/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/76/c3/1390ce3a6f8cc8c8f6fb964acfa6",
+  "build/prefab/full/linux_x86_64_gui/debug/ballisticakit": "https://files.ballistica.net/cache/ba1/7a/08/7bbb34a806cb2496c09dfde676e4",
+  "build/prefab/full/linux_x86_64_gui/release/ballisticakit": "https://files.ballistica.net/cache/ba1/9a/ec/b1ceae80bb7883223fb452357fb7",
+  "build/prefab/full/linux_x86_64_server/debug/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/9f/1c/143dea8c4fe1e3e2d85a8c840e72",
+  "build/prefab/full/linux_x86_64_server/release/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/81/b0/e1b2ca529888b4404141ed85fead",
+  "build/prefab/full/mac_arm64_gui/debug/ballisticakit": "https://files.ballistica.net/cache/ba1/03/9d/1a6c8386f0d400337c4603041b35",
+  "build/prefab/full/mac_arm64_gui/release/ballisticakit": "https://files.ballistica.net/cache/ba1/2e/99/6a8ca74892e6592dbc76a3c7b131",
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+  "build/prefab/full/windows_x86_gui/debug/BallisticaKit.exe": "https://files.ballistica.net/cache/ba1/ea/8b/dcbc7facc3517832cd087cde8392",
+  "build/prefab/full/windows_x86_gui/release/BallisticaKit.exe": "https://files.ballistica.net/cache/ba1/4c/2b/3d925eca850cad90a85110f7363d",
+  "build/prefab/full/windows_x86_server/debug/dist/BallisticaKitHeadless.exe": "https://files.ballistica.net/cache/ba1/b4/fb/5e7980c7a8af2e54283f3cba8432",
+  "build/prefab/full/windows_x86_server/release/dist/BallisticaKitHeadless.exe": "https://files.ballistica.net/cache/ba1/b4/56/d1a2a14e4010e9684d966c723383",
   "build/prefab/lib/linux_arm64_gui/debug/libballistica_plus.a": "https://files.ballistica.net/cache/ba1/be/19/b5458933dfc7371d91ecfcd2e06f",
   "build/prefab/lib/linux_arm64_gui/release/libballistica_plus.a": "https://files.ballistica.net/cache/ba1/4e/48/123b806cbe6ddb3d9a8368bbb4f8",
   "build/prefab/lib/linux_arm64_server/debug/libballistica_plus.a": "https://files.ballistica.net/cache/ba1/be/19/b5458933dfc7371d91ecfcd2e06f",
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ce48b7d9..9830fc63 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-### 1.7.21 (build 21150, api 8, 2023-06-26)
+### 1.7.21 (build 21152, api 8, 2023-06-27)
 
 - Fixed an issue where server builds would not always include collision meshes.
 - Upgraded Python to 3.11.4 on Android builds.
diff --git a/src/assets/ba_data/python/baenv.py b/src/assets/ba_data/python/baenv.py
index ca32a9e2..3160bd5c 100644
--- a/src/assets/ba_data/python/baenv.py
+++ b/src/assets/ba_data/python/baenv.py
@@ -28,7 +28,7 @@ if TYPE_CHECKING:
 
 # Build number and version of the ballistica binary we expect to be
 # using.
-TARGET_BALLISTICA_BUILD = 21150
+TARGET_BALLISTICA_BUILD = 21152
 TARGET_BALLISTICA_VERSION = '1.7.21'
 
 _g_env_config: EnvConfig | None = None
diff --git a/src/ballistica/shared/ballistica.cc b/src/ballistica/shared/ballistica.cc
index 1d85cf6b..72523332 100644
--- a/src/ballistica/shared/ballistica.cc
+++ b/src/ballistica/shared/ballistica.cc
@@ -39,7 +39,7 @@ auto main(int argc, char** argv) -> int {
 namespace ballistica {
 
 // These are set automatically via script; don't modify them here.
-const int kEngineBuildNumber = 21150;
+const int kEngineBuildNumber = 21152;
 const char* kEngineVersion = "1.7.21";
 
 auto MonolithicMain(const core::CoreConfig& core_config) -> int {
diff --git a/src/ballistica/shared/foundation/event_loop.cc b/src/ballistica/shared/foundation/event_loop.cc
index 8603b0ca..301956f7 100644
--- a/src/ballistica/shared/foundation/event_loop.cc
+++ b/src/ballistica/shared/foundation/event_loop.cc
@@ -76,9 +76,17 @@ EventLoop::EventLoop(EventLoopID identifier_in, ThreadSource source)
       // Block until the thread is bootstrapped.
       // (maybe not necessary, but let's be cautious in case we'd
       // try to use things like thread_id before they're known).
+      if (identifier_ == EventLoopID::kLogic) {
+        g_core->LifecycleLog("logic thread bootstrap wait begin");
+      }
+
       std::unique_lock lock(client_listener_mutex_);
       client_listener_cv_.wait(lock, [this] { return bootstrapped_; });
 
+      if (identifier_ == EventLoopID::kLogic) {
+        g_core->LifecycleLog("logic thread bootstrap wait end");
+      }
+
       break;
     }
     case ThreadSource::kWrapMain: {
@@ -714,6 +722,10 @@ void EventLoop::PushRunnableSynchronous(Runnable* runnable) {
     PushCrossThreadRunnable(runnable, &complete);
   }
 
+  if (identifier_ == EventLoopID::kLogic) {
+    g_core->LifecycleLog("logic thread sync run push begin");
+  }
+
   // Now listen until our completion flag gets set.
   std::unique_lock lock(client_listener_mutex_);
   client_listener_cv_.wait(lock, [complete_ptr] {
@@ -721,6 +733,10 @@ void EventLoop::PushRunnableSynchronous(Runnable* runnable) {
     // (if we're not actually complete yet).
     return *complete_ptr;
   });
+
+  if (identifier_ == EventLoopID::kLogic) {
+    g_core->LifecycleLog("logic thread sync run push end");
+  }
 }
 
 auto EventLoop::CheckPushSafety() -> bool {