diff --git a/.efrocachemap b/.efrocachemap
index 167e4409..808538f8 100644
--- a/.efrocachemap
+++ b/.efrocachemap
@@ -420,8 +420,8 @@
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   "assets/build/ba_data/audio/zoePickup01.ogg": "https://files.ballistica.net/cache/ba1/72/85/d6fc4d16b7081d91fba2850b5b10",
   "assets/build/ba_data/audio/zoeScream01.ogg": "https://files.ballistica.net/cache/ba1/e9/ae/1d674d0c086eaa0bd1c3b1db0505",
-  "assets/build/ba_data/data/langdata.json": "https://files.ballistica.net/cache/ba1/08/52/9dffb3f4f693b49ecf20827f1f4d",
-  "assets/build/ba_data/data/languages/arabic.json": "https://files.ballistica.net/cache/ba1/ec/97/713007418488dd543cf6edcdd9d2",
+  "assets/build/ba_data/data/langdata.json": "https://files.ballistica.net/cache/ba1/a3/38/05424b4cfb6e23e902b6dc20b209",
+  "assets/build/ba_data/data/languages/arabic.json": "https://files.ballistica.net/cache/ba1/5b/cf/4501b151257c3d8d6ee8d0497d14",
   "assets/build/ba_data/data/languages/belarussian.json": "https://files.ballistica.net/cache/ba1/61/03/89070ca765e06da3a419a579f503",
   "assets/build/ba_data/data/languages/chinese.json": "https://files.ballistica.net/cache/ba1/17/21/7b6371bde52392eb4a38e7c6d55a",
   "assets/build/ba_data/data/languages/chinesetraditional.json": "https://files.ballistica.net/cache/ba1/44/aa/c12568afb4558dc7f9f2fa155467",
@@ -440,7 +440,7 @@
   "assets/build/ba_data/data/languages/hungarian.json": "https://files.ballistica.net/cache/ba1/d8/f2/aa16bc336bd7660cc86c3264bfc4",
   "assets/build/ba_data/data/languages/indonesian.json": "https://files.ballistica.net/cache/ba1/09/6c/942dd354447772a69ea5cae1d486",
   "assets/build/ba_data/data/languages/italian.json": "https://files.ballistica.net/cache/ba1/91/70/05ad4a6fdbdaa0f471225f7ad317",
-  "assets/build/ba_data/data/languages/korean.json": "https://files.ballistica.net/cache/ba1/07/37/ab65ccee3a555bd40e9661860c58",
+  "assets/build/ba_data/data/languages/korean.json": "https://files.ballistica.net/cache/ba1/a8/e9/171a904f1331fdb7b1918a0f2598",
   "assets/build/ba_data/data/languages/persian.json": "https://files.ballistica.net/cache/ba1/83/4a/ec10142ac479bf8d80455b47a62b",
   "assets/build/ba_data/data/languages/polish.json": "https://files.ballistica.net/cache/ba1/19/e9/59c891b1fb85f3ba9f19283c233d",
   "assets/build/ba_data/data/languages/portuguese.json": "https://files.ballistica.net/cache/ba1/23/18/33f3364310ccc4c03930e2ac50b0",
@@ -448,7 +448,7 @@
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   "assets/build/ba_data/data/languages/serbian.json": "https://files.ballistica.net/cache/ba1/4e/91/6f2a9a3ce733908e91377a6ddb9a",
   "assets/build/ba_data/data/languages/slovak.json": "https://files.ballistica.net/cache/ba1/f9/4b/d9f01814224066856695452ef57c",
-  "assets/build/ba_data/data/languages/spanish.json": "https://files.ballistica.net/cache/ba1/fe/5c/39f3cedbe24f8e31b4e3004f49bc",
+  "assets/build/ba_data/data/languages/spanish.json": "https://files.ballistica.net/cache/ba1/21/f2/eb708333aebad434a5e422e92fce",
   "assets/build/ba_data/data/languages/swedish.json": "https://files.ballistica.net/cache/ba1/91/0a/35c4baf539d5951fc03a794c0e0b",
   "assets/build/ba_data/data/languages/tamil.json": "https://files.ballistica.net/cache/ba1/b5/7e/8dc92a39fb826c1d360ad639d9cb",
   "assets/build/ba_data/data/languages/thai.json": "https://files.ballistica.net/cache/ba1/f7/df/7ba5f99c5c2c4c86fc0503fcf0b7",
@@ -3995,26 +3995,26 @@
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   "assets/src/ba_data/python/ba/_generated/enums.py": "https://files.ballistica.net/cache/ba1/b2/e5/0ee0561e16257a32830645239f34",
   "ballisticacore-windows/Generic/BallisticaCore.ico": "https://files.ballistica.net/cache/ba1/89/c0/e32c7d2a35dc9aef57cc73b0911a",
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diff --git a/CHANGELOG.md b/CHANGELOG.md
index ac5ca69a..b0e80f79 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-### 1.7.7 (build 20721, api 7, 2022-08-26)
+### 1.7.7 (build 20723, api 7, 2022-08-26)
 - Added `ba.app.meta.load_exported_classes()` for loading classes discovered by the meta subsystem cleanly in a background thread.
 - Improved logging of missing playlist game types.
 - Some ba.Lstr functionality can now be used in background threads.
diff --git a/src/ballistica/ballistica.cc b/src/ballistica/ballistica.cc
index 0cf4df14..e781430d 100644
--- a/src/ballistica/ballistica.cc
+++ b/src/ballistica/ballistica.cc
@@ -21,7 +21,7 @@
 namespace ballistica {
 
 // These are set automatically via script; don't modify them here.
-const int kAppBuildNumber = 20721;
+const int kAppBuildNumber = 20723;
 const char* kAppVersion = "1.7.7";
 
 // Our standalone globals.
diff --git a/tools/efro/message/_sender.py b/tools/efro/message/_sender.py
index 6c95683e..c9d343d2 100644
--- a/tools/efro/message/_sender.py
+++ b/tools/efro/message/_sender.py
@@ -140,7 +140,8 @@ class MessageSender:
             # Any error in the raw send call gets recorded as either
             # a local or communication error.
             return ErrorResponse(
-                error_message=f'Error in send method ({type(exc)}): {exc}',
+                error_message=
+                f'Error in MessageSender @send_method ({type(exc)}): {exc}',
                 error_type=(ErrorResponse.ErrorType.COMMUNICATION
                             if isinstance(exc, CommunicationError) else
                             ErrorResponse.ErrorType.LOCAL))
@@ -166,7 +167,8 @@ class MessageSender:
             # Any error in the raw send call gets recorded as either
             # a local or communication error.
             return ErrorResponse(
-                error_message=f'Error in send async method ({type(exc)}):'
+                error_message=
+                f'Error in MessageSender @send_async_method ({type(exc)}):'
                 f' {exc}',
                 error_type=(ErrorResponse.ErrorType.COMMUNICATION
                             if isinstance(exc, CommunicationError) else