Thank you for report.
I would like to see the log of when that error occurred.
Can you upload the "Documents/Assetto Corsa/logs" folder for me?
There is a text from log.txt about python apps when Helocorsa is OFF:
Initialising Python Interface
Cleaning Python Cache in path apps/python/system/
LOADING 6 PY APPS
ERROR: Python [ERROR] File apps/python/Chat/Chat.py not found
ERROR: Python [ERROR] File apps/python/gMeter/gMeter.py not found
ERROR: Python [ERROR] File apps/python/gps/gps.py not found
ERROR: Python [ERROR] File apps/python/helicorsa/helicorsa.py not found
Cleaning Python Cache in path apps/python/IS_3DMap/
Opening PyModule IS_3DMap
ERROR
PyModule :: Errors occurred loading IS_3DMap
[PY ERROR]: apps/python/IS_3DMap\IS_3DMap.py (15)
ERROR: Python ERROR LOADING MODULE :sys.path.append('apps/python/IS_3DMap')
File py_log.txt has zero size, it's empty. May be because of some non-english character in the full path name of the Documents folder.
Other files has no references to IS_3DMap Apps
There is a text from log.txt about python apps when Helocorsa is ON:
Initialising Python Interface
Cleaning Python Cache in path apps/python/system/
LOADING 6 PY APPS
ERROR: Python [ERROR] File apps/python/Chat/Chat.py not found
ERROR: Python [ERROR] File apps/python/gMeter/gMeter.py not found
ERROR: Python [ERROR] File apps/python/gps/gps.py not found
Cleaning Python Cache in path apps/python/helicorsa/
Opening PyModule helicorsa
Init PyPlugin:helicorsa
'module' object has no attribute 'acUpdate'
Function acShutdown bind to module
Cleaning Python Cache in path apps/python/IS_3DMap/
Opening PyModule IS_3DMap
Init PyPlugin:IS_3DMap
Function acUpdate bind to module
bad argument type for built-in operation
Function acShutdown bind to module