diff --git a/.efrocachemap b/.efrocachemap
index 9b8d6fa4..b6a9940a 100644
--- a/.efrocachemap
+++ b/.efrocachemap
@@ -4080,18 +4080,18 @@
   "build/prefab/full/linux_x86_64_gui/release/ballisticakit": "https://files.ballistica.net/cache/ba1/1a/b6/9196bf7553c8380ddd37c8aba83f",
   "build/prefab/full/linux_x86_64_server/debug/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/24/56/34bbdafa6ed8d8505fa50b40e10a",
   "build/prefab/full/linux_x86_64_server/release/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/0c/9b/6dbedf9c32a5591fbc0724a7b050",
-  "build/prefab/full/mac_arm64_gui/debug/ballisticakit": "https://files.ballistica.net/cache/ba1/d9/a7/817abecb699307e03873c5052eb9",
+  "build/prefab/full/mac_arm64_gui/debug/ballisticakit": "https://files.ballistica.net/cache/ba1/c9/53/6d75eb99abfdb64b5b9fc597eea9",
   "build/prefab/full/mac_arm64_gui/release/ballisticakit": "https://files.ballistica.net/cache/ba1/16/3e/5a02a80c844ea71c3ce1f229ff25",
-  "build/prefab/full/mac_arm64_server/debug/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/ee/35/13f0e5511418e481dfa0268ca584",
+  "build/prefab/full/mac_arm64_server/debug/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/3f/49/f9a48696eb2dd8842a7bb4053bf8",
   "build/prefab/full/mac_arm64_server/release/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/c3/d0/4fc44285b21e6b3dc4d9b3c30a28",
-  "build/prefab/full/mac_x86_64_gui/debug/ballisticakit": "https://files.ballistica.net/cache/ba1/cd/30/211ea63ece7430c32a5d6957ee8b",
+  "build/prefab/full/mac_x86_64_gui/debug/ballisticakit": "https://files.ballistica.net/cache/ba1/23/a4/1047c0daaac139ff7de5d511291f",
   "build/prefab/full/mac_x86_64_gui/release/ballisticakit": "https://files.ballistica.net/cache/ba1/a5/5f/1c69d9dab37d811da0cdde48d09f",
-  "build/prefab/full/mac_x86_64_server/debug/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/35/89/9d829c85c84a58c2c4f3ebeca3a3",
+  "build/prefab/full/mac_x86_64_server/debug/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/9e/1c/821f7444343f8993c96dbddf14cc",
   "build/prefab/full/mac_x86_64_server/release/dist/ballisticakit_headless": "https://files.ballistica.net/cache/ba1/b8/3b/b2f787a50ed7a2271b0c65f0ab3e",
-  "build/prefab/full/windows_x86_gui/debug/BallisticaKit.exe": "https://files.ballistica.net/cache/ba1/b8/c4/d5224c7d80c7f009ad4f9253e5cc",
-  "build/prefab/full/windows_x86_gui/release/BallisticaKit.exe": "https://files.ballistica.net/cache/ba1/23/e3/d5d91a13820b34a71ef13c76120b",
-  "build/prefab/full/windows_x86_server/debug/dist/BallisticaKitHeadless.exe": "https://files.ballistica.net/cache/ba1/ae/08/a08028e881fcdef7608a17d4312b",
-  "build/prefab/full/windows_x86_server/release/dist/BallisticaKitHeadless.exe": "https://files.ballistica.net/cache/ba1/14/9e/3aaf965144a0da82bf6ae363a4fb",
+  "build/prefab/full/windows_x86_gui/debug/BallisticaKit.exe": "https://files.ballistica.net/cache/ba1/76/80/746e44769240e355ae1eb5ca69c4",
+  "build/prefab/full/windows_x86_gui/release/BallisticaKit.exe": "https://files.ballistica.net/cache/ba1/15/1c/9360382b7acddac5c11218c90d04",
+  "build/prefab/full/windows_x86_server/debug/dist/BallisticaKitHeadless.exe": "https://files.ballistica.net/cache/ba1/9b/b9/b9609ee4f8aed7e94b8287e9f3f5",
+  "build/prefab/full/windows_x86_server/release/dist/BallisticaKitHeadless.exe": "https://files.ballistica.net/cache/ba1/49/76/a94b3cc34216280342eebc128e91",
   "build/prefab/lib/linux_arm64_gui/debug/libballistica_plus.a": "https://files.ballistica.net/cache/ba1/8a/39/82acd22444cdde966df4838b3235",
   "build/prefab/lib/linux_arm64_gui/release/libballistica_plus.a": "https://files.ballistica.net/cache/ba1/82/23/3da9e812f6d9d83e9c4678645792",
   "build/prefab/lib/linux_arm64_server/debug/libballistica_plus.a": "https://files.ballistica.net/cache/ba1/8a/39/82acd22444cdde966df4838b3235",
@@ -4108,14 +4108,14 @@
   "build/prefab/lib/mac_x86_64_gui/release/libballistica_plus.a": "https://files.ballistica.net/cache/ba1/2b/1d/067ca5d1bc54339f2b8682ef1aed",
   "build/prefab/lib/mac_x86_64_server/debug/libballistica_plus.a": "https://files.ballistica.net/cache/ba1/65/49/cdbaca8ea343d79992618514438c",
   "build/prefab/lib/mac_x86_64_server/release/libballistica_plus.a": "https://files.ballistica.net/cache/ba1/2b/1d/067ca5d1bc54339f2b8682ef1aed",
-  "build/prefab/lib/windows/Debug_Win32/BallisticaKitGenericPlus.lib": "https://files.ballistica.net/cache/ba1/ca/e0/5b837daec3c9946f58f20387b01b",
-  "build/prefab/lib/windows/Debug_Win32/BallisticaKitGenericPlus.pdb": "https://files.ballistica.net/cache/ba1/5c/a7/b2e8a46999116012692ca14206c9",
-  "build/prefab/lib/windows/Debug_Win32/BallisticaKitHeadlessPlus.lib": "https://files.ballistica.net/cache/ba1/6d/33/2d02e52fdeb5058bda02aa88de87",
-  "build/prefab/lib/windows/Debug_Win32/BallisticaKitHeadlessPlus.pdb": "https://files.ballistica.net/cache/ba1/56/3d/5167e1312bd0add04c4af6ae86d3",
-  "build/prefab/lib/windows/Release_Win32/BallisticaKitGenericPlus.lib": "https://files.ballistica.net/cache/ba1/7e/f5/6da7745faf8efba3b0f239683455",
-  "build/prefab/lib/windows/Release_Win32/BallisticaKitGenericPlus.pdb": "https://files.ballistica.net/cache/ba1/30/42/8e05ee3524c3cf8c4c902d61a91b",
-  "build/prefab/lib/windows/Release_Win32/BallisticaKitHeadlessPlus.lib": "https://files.ballistica.net/cache/ba1/fb/6a/31eb66e772d021632273c9b24a68",
-  "build/prefab/lib/windows/Release_Win32/BallisticaKitHeadlessPlus.pdb": "https://files.ballistica.net/cache/ba1/64/ad/173602de134654f695ab60c13d8c",
+  "build/prefab/lib/windows/Debug_Win32/BallisticaKitGenericPlus.lib": "https://files.ballistica.net/cache/ba1/88/c6/cb04b34c8c06b8b6793d8d080e7b",
+  "build/prefab/lib/windows/Debug_Win32/BallisticaKitGenericPlus.pdb": "https://files.ballistica.net/cache/ba1/df/f6/0217254d64302c9354fe662d95f8",
+  "build/prefab/lib/windows/Debug_Win32/BallisticaKitHeadlessPlus.lib": "https://files.ballistica.net/cache/ba1/db/fc/520627c1865bd7ea67d9c660cfcb",
+  "build/prefab/lib/windows/Debug_Win32/BallisticaKitHeadlessPlus.pdb": "https://files.ballistica.net/cache/ba1/4d/13/dc727b9b5d6c28700330e75376b8",
+  "build/prefab/lib/windows/Release_Win32/BallisticaKitGenericPlus.lib": "https://files.ballistica.net/cache/ba1/9a/5b/9f93c3755d25fd3ee1e19f92bdd3",
+  "build/prefab/lib/windows/Release_Win32/BallisticaKitGenericPlus.pdb": "https://files.ballistica.net/cache/ba1/96/33/b6024f46dbdab76395f04b3e3c56",
+  "build/prefab/lib/windows/Release_Win32/BallisticaKitHeadlessPlus.lib": "https://files.ballistica.net/cache/ba1/99/f5/2ff140ccee02e6710c05b777c934",
+  "build/prefab/lib/windows/Release_Win32/BallisticaKitHeadlessPlus.pdb": "https://files.ballistica.net/cache/ba1/7d/c8/4017a9d47386adbaf0e7050733b1",
   "src/assets/ba_data/python/babase/_mgen/__init__.py": "https://files.ballistica.net/cache/ba1/f8/85/fed7f2ed98ff2ba271f9dbe3391c",
   "src/assets/ba_data/python/babase/_mgen/enums.py": "https://files.ballistica.net/cache/ba1/48/4b/e6974f0a4d14be8213dc00d971c3",
   "src/ballistica/base/mgen/pyembed/binding_base.inc": "https://files.ballistica.net/cache/ba1/3e/7a/203e2a5d2b5bb42cfe3fd2fe16c2",
diff --git a/tools/batools/spinoff/_context.py b/tools/batools/spinoff/_context.py
index 26c51fbb..1cea5a0c 100644
--- a/tools/batools/spinoff/_context.py
+++ b/tools/batools/spinoff/_context.py
@@ -801,14 +801,21 @@ class SpinoffContext:
             and src_path.startswith('ballisticakit-windows/')
             and src_path.endswith('.vcxproj')
         ):
-            # Strip precompiled plus library out of visual studio projects.
-            text = replace_exact(
-                text,
+            sstr = (
                 '  <ItemGroup>\n'
                 '    <Library Include="..\\..\\build\\prefab\\lib\\windows'
                 '\\$(Configuration)_$(Platform)\\'
                 '$(MSBuildProjectName)Plus.lib" />\n'
-                '  </ItemGroup>\n',
+                '  </ItemGroup>\n'
+            )
+
+            if sstr not in text:
+                print('WTF\n', text)
+
+            # Strip precompiled plus library out of visual studio projects.
+            text = replace_exact(
+                text,
+                sstr,
                 '',
                 label=src_path,
             )
diff --git a/tools/efrotools/__init__.py b/tools/efrotools/__init__.py
index 869992dc..70e580fd 100644
--- a/tools/efrotools/__init__.py
+++ b/tools/efrotools/__init__.py
@@ -203,7 +203,7 @@ def replace_exact(
     has not changed.
     """
     found = opstr.count(old)
-    label_str = f'in {label}' if label is not None else ''
+    label_str = f' in {label}' if label is not None else ''
     if found != count:
         raise RuntimeError(
             f'Expected {count} string occurrence(s){label_str};'