So here is the important bit of the crash rapport:
rocess: ck2 [2619]
Path: /Users/USER/Library/Application Support/Steam/*/ck2.app/Contents/MacOS/ck2
Identifier: ???
Version: ??? (???)
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: ck2 [2619]
User ID: 501
Date/Time: 2021-02-26 20:46:05.026 +0100
OS Version: macOS 11.2.1 (20D75)
Report Version: 12
Anonymous UUID: CF4A37AD-E5E1-CEEC-AA17-93B7B1D5E680
Sleep/Wake UUID: 14096FD2-9F8B-4BF0-A32D-99C2C86F8805
Time Awake Since Boot: 3600 seconds
Time Since Wake: 1100 seconds
System Integrity Protection: enabled
Crashed Thread: 0 MainThrd Dispatch queue: com.apple.main-thread
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Application Specific Information:
abort() called
terminating with uncaught exception of type CFileException
Thread 0 Crashed:: MainThrd Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x00007fff205e1462 __pthread_kill + 10
1 libsystem_pthread.dylib 0x00007fff2060f610 pthread_kill + 263
2 libsystem_c.dylib 0x00007fff20562720 abort + 120
3 libc++abi.dylib 0x00007fff205d4418 abort_message + 231
4 libc++abi.dylib 0x00007fff205c5a7d demangling_terminate_handler() + 266
5 libobjc.A.dylib 0x00007fff204bb9b9 _objc_terminate() + 104
6 libc++abi.dylib 0x00007fff205d3847 std::__terminate(void (*)()) + 8
7 libc++abi.dylib 0x00007fff205d6167 __cxxabiv1::failed_throw(__cxxabiv1::__cxa_exception*) + 27
8 libc++abi.dylib 0x00007fff205d612e __cxa_throw + 113
9 0x0000000100f50b39 CArchiveFile::CArchiveFile(CString const&, EFileType, bool, CString const&, bool) + 875
10 0x00000001005f31d7 CFlagTexturemap::CreateTexturesFromDisc(CString const&, CTitleDatabase*, CEU3Graphics&, bool) + 8869
11 0x0000000100537915 CEU3Graphics::LoadFlagTextures(bool) + 117
12 0x00000001002aea1a CCKApplication::InitGame() + 1068
13 0x00000001002ab924 CCKApplication::Init() + 476
14 0x00000001006ee39f main + 13195
15 libdyld.dylib 0x00007fff2062a621 start + 1
Any help at all would be welcome.
rocess: ck2 [2619]
Path: /Users/USER/Library/Application Support/Steam/*/ck2.app/Contents/MacOS/ck2
Identifier: ???
Version: ??? (???)
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: ck2 [2619]
User ID: 501
Date/Time: 2021-02-26 20:46:05.026 +0100
OS Version: macOS 11.2.1 (20D75)
Report Version: 12
Anonymous UUID: CF4A37AD-E5E1-CEEC-AA17-93B7B1D5E680
Sleep/Wake UUID: 14096FD2-9F8B-4BF0-A32D-99C2C86F8805
Time Awake Since Boot: 3600 seconds
Time Since Wake: 1100 seconds
System Integrity Protection: enabled
Crashed Thread: 0 MainThrd Dispatch queue: com.apple.main-thread
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Application Specific Information:
abort() called
terminating with uncaught exception of type CFileException
Thread 0 Crashed:: MainThrd Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x00007fff205e1462 __pthread_kill + 10
1 libsystem_pthread.dylib 0x00007fff2060f610 pthread_kill + 263
2 libsystem_c.dylib 0x00007fff20562720 abort + 120
3 libc++abi.dylib 0x00007fff205d4418 abort_message + 231
4 libc++abi.dylib 0x00007fff205c5a7d demangling_terminate_handler() + 266
5 libobjc.A.dylib 0x00007fff204bb9b9 _objc_terminate() + 104
6 libc++abi.dylib 0x00007fff205d3847 std::__terminate(void (*)()) + 8
7 libc++abi.dylib 0x00007fff205d6167 __cxxabiv1::failed_throw(__cxxabiv1::__cxa_exception*) + 27
8 libc++abi.dylib 0x00007fff205d612e __cxa_throw + 113
9 0x0000000100f50b39 CArchiveFile::CArchiveFile(CString const&, EFileType, bool, CString const&, bool) + 875
10 0x00000001005f31d7 CFlagTexturemap::CreateTexturesFromDisc(CString const&, CTitleDatabase*, CEU3Graphics&, bool) + 8869
11 0x0000000100537915 CEU3Graphics::LoadFlagTextures(bool) + 117
12 0x00000001002aea1a CCKApplication::InitGame() + 1068
13 0x00000001002ab924 CCKApplication::Init() + 476
14 0x00000001006ee39f main + 13195
15 libdyld.dylib 0x00007fff2062a621 start + 1
Any help at all would be welcome.