diff --git a/.efrocachemap b/.efrocachemap
index 20a0a3d2..189b810b 100644
--- a/.efrocachemap
+++ b/.efrocachemap
@@ -4114,10 +4114,10 @@
   "assets/build/windows/x64/python.exe": "https://files.ballistica.net/cache/ba1/25/a7/dc87c1be41605eb6fefd0145144c",
   "assets/build/windows/x64/python37.dll": "https://files.ballistica.net/cache/ba1/b9/e4/d912f56e42e9991bcbb4c804cfcb",
   "assets/build/windows/x64/pythonw.exe": "https://files.ballistica.net/cache/ba1/6c/bb/b6f52c306aa4e88061510e96cefe",
-  "build/prefab/linux/debug/ballisticacore": "https://files.ballistica.net/cache/ba1/c4/9e/3939cebb867e877d90e0cf7d145e",
-  "build/prefab/linux/release/ballisticacore": "https://files.ballistica.net/cache/ba1/f2/54/9c026e7b1274e72dd51774faff64",
-  "build/prefab/mac/debug/ballisticacore": "https://files.ballistica.net/cache/ba1/7b/c1/d8ab89a15840be9f627924f2f2a3",
-  "build/prefab/mac/release/ballisticacore": "https://files.ballistica.net/cache/ba1/21/22/643093c7ea9435f57eb02a14fae7",
-  "build/prefab/windows/debug/BallisticaCore.exe": "https://files.ballistica.net/cache/ba1/3f/49/b581b216a3b51ddb13d094897130",
-  "build/prefab/windows/release/BallisticaCore.exe": "https://files.ballistica.net/cache/ba1/c0/bf/fc98b7d1da0b9eec8b5a56308875"
+  "build/prefab/linux/debug/ballisticacore": "https://files.ballistica.net/cache/ba1/ff/6b/d0873927a179b2a85a3dea2da18a",
+  "build/prefab/linux/release/ballisticacore": "https://files.ballistica.net/cache/ba1/ac/48/72f261d7884a21cb79feef2d0a02",
+  "build/prefab/mac/debug/ballisticacore": "https://files.ballistica.net/cache/ba1/e7/e8/6cb5ba8c688986b322dd998c0320",
+  "build/prefab/mac/release/ballisticacore": "https://files.ballistica.net/cache/ba1/91/76/6037c47265319bcbf4e448307a57",
+  "build/prefab/windows/debug/BallisticaCore.exe": "https://files.ballistica.net/cache/ba1/43/23/d3e915b7c5222535ea723538d778",
+  "build/prefab/windows/release/BallisticaCore.exe": "https://files.ballistica.net/cache/ba1/ce/98/72177f47655d61fedb069cb2e279"
 }
\ No newline at end of file
diff --git a/assets/src/ba_data/python/_ba.py b/assets/src/ba_data/python/_ba.py
index dbdae18c..8ad46bfd 100644
--- a/assets/src/ba_data/python/_ba.py
+++ b/assets/src/ba_data/python/_ba.py
@@ -34,7 +34,7 @@ NOTE: This file was autogenerated by gendummymodule; do not edit by hand.
 """
 
 # (hash we can use to see if this file is out of date)
-# SOURCES_HASH=19018950468850503638731149460882909299
+# SOURCES_HASH=13501269283550798144571003636886602232
 
 # I'm sorry Pylint. I know this file saddens you. Be strong.
 # pylint: disable=useless-suppression
@@ -1998,7 +1998,7 @@ def get_display_resolution() -> Tuple[int, int]:
     return (0, 0)
 
 
-def get_foreground_host_activity() -> ba.Activity:
+def get_foreground_host_activity() -> Optional[ba.Activity]:
     """get_foreground_host_activity() -> Optional[ba.Activity]
 
     (internal)
@@ -2010,7 +2010,7 @@ def get_foreground_host_activity() -> ba.Activity:
     return ba.Activity({})
 
 
-def get_foreground_host_session() -> ba.Session:
+def get_foreground_host_session() -> Optional[ba.Session]:
     """get_foreground_host_session() -> Optional[ba.Session]
 
     (internal)
diff --git a/assets/src/ba_data/python/ba/_apputils.py b/assets/src/ba_data/python/ba/_apputils.py
index 91307be2..25a77d7d 100644
--- a/assets/src/ba_data/python/ba/_apputils.py
+++ b/assets/src/ba_data/python/ba/_apputils.py
@@ -320,8 +320,9 @@ def call_after_ad(call: Callable[[], Any]) -> None:
     if have_pro():
         show = False  # Pro disables interstitials.
     try:
-        is_tournament = (_ba.get_foreground_host_session().tournament_id is
-                         not None)
+        session = _ba.get_foreground_host_session()
+        assert session is not None
+        is_tournament = session.tournament_id is not None
     except Exception:
         is_tournament = False
     if is_tournament:
diff --git a/assets/src/ba_data/python/ba/_benchmark.py b/assets/src/ba_data/python/ba/_benchmark.py
index 0a0c915e..c5a5aa08 100644
--- a/assets/src/ba_data/python/ba/_benchmark.py
+++ b/assets/src/ba_data/python/ba/_benchmark.py
@@ -147,7 +147,9 @@ def _reset_stress_test(args: Dict[str, Any]) -> None:
     from ba._enums import TimeType
     _ba.set_stress_testing(False, args['player_count'])
     _ba.screenmessage('Resetting stress test...')
-    _ba.get_foreground_host_session().end()
+    session = _ba.get_foreground_host_session()
+    assert session is not None
+    session.end()
     _ba.timer(1.0, Call(start_stress_test, args), timetype=TimeType.REAL)