App runs fine from XCode, but terminates with an error if installed through TestFlight

[CoderCoderCoder]

Hello,
there is another issue. My small test app runs fine from XCode on any tested iOS device, but it terminates if installed from TestFlight (again - same problem on all tested devices).
The error in the kivy.log is the following:

[INFO ] Logger: Record log in /private/var/mobile/Containers/Data/Application/0272A895-930E-4A35-9A7C-0C7FAF35271D/Documents/kivy.log
[DEBUG ] Config: Upgrading from 0 to 1
[WARNING] Config: Upgrading configuration in progress.
[WARNING] Config: Older configuration version detected (0 instead of 27)
[INFO ] Kivy: v2.2.1
[INFO ] Kivy: Installed at "/private/var/containers/Bundle/Application/C46E6088-CCB8-406E-B4D5-E407DBDD1FC8/MyApp.app/lib/python3.10/site-packages/kivy/init.py"
[INFO ] Python: v3.10.10 (main, Aug 24 2023, 02:03:55) [Clang 14.0.3 (clang-1403.0.22.14.1)]
[INFO ] Python: Interpreter at "/private/var/containers/Bundle/Application/C46E6088-CCB8-406E-B4D5-E407DBDD1FC8/MyApp.app/MyApp"
[INFO ] Logger: Purge log fired. Processing...
[INFO ] Logger: Purge finished!
[WARNING] stderr: Traceback (most recent call last):
[WARNING] stderr: File "", line 45, in load_module
[WARNING] stderr: File "/Users/myname/Documents/Projects/MyApp-IOS/dist/root/python3/lib/python3.10/imp.py", line 343, in load_dynamic
[WARNING] stderr: File "", line 719, in _load
[WARNING] stderr: File "", line 674, in _load_unlocked
[WARNING] stderr: File "", line 571, in module_from_spec
[WARNING] stderr: File "", line 1176, in create_module
[WARNING] stderr: File "", line 241, in _call_with_frames_removed
[WARNING] stderr: ImportError: dynamic module does not define module export function (PyInit_kivy__event)
[WARNING] stderr:
[WARNING] stderr: During handling of the above exception, another exception occurred:
[WARNING] stderr:
[WARNING] stderr: Traceback (most recent call last):
[WARNING] stderr: File "/Users/myname/Documents/Projects/MyApp-IOS/myapp-ios/YourApp/main.py", line 31, in
[WARNING] stderr: File "/private/var/containers/Bundle/Application/C46E6088-CCB8-406E-B4D5-E407DBDD1FC8/MyApp.app/lib/python3.10/site-packages/kivy/uix/modalview.py", line 79, in
[WARNING] stderr: from kivy.animation import Animation
[WARNING] stderr: File "/private/var/containers/Bundle/Application/C46E6088-CCB8-406E-B4D5-E407DBDD1FC8/MyApp.app/lib/python3.10/site-packages/kivy/animation.py", line 88, in
[WARNING] stderr: from kivy.event import EventDispatcher
[WARNING] stderr: File "/private/var/containers/Bundle/Application/C46E6088-CCB8-406E-B4D5-E407DBDD1FC8/MyApp.app/lib/python3.10/site-packages/kivy/event.py", line 8, in
[WARNING] stderr: import kivy._event
[WARNING] stderr: File "", line 49, in load_module
[WARNING] stderr: File "/Users/myname/Documents/Projects/MyApp-IOS/dist/root/python3/lib/python3.10/imp.py", line 343, in load_dynamic
[WARNING] stderr: ImportError: dynamic module does not define module export function (PyInit__event)

The crash itself happens at:

"from kivymd.app import MDApp" (my first Kivy-related import line, but it crashes on any first Kivy import anyway, I tested it)

Please help, thank you!

[CoderCoderCoder]

I found the solution for this problem - prepared a separate conda environment with Python 3.10.10 installed (instead of 3.9.x in my case). Also I built everything besides of hostpython for arm64 only.