Crashing while saving file. 2020 SU pro. Has never done this except for today

Tried reboot, saving files to another place, other files not working on also crashed.
Model Name: iMac Pro
Model Identifier: iMacPro1,1
Processor Name: 10-Core Intel Xeon W
Processor Speed: 3 GHz
Number of Processors: 1
Total Number of Cores: 10
L2 Cache (per Core): 1 MB
L3 Cache: 13.8 MB
Hyper-Threading Technology: Enabled
Memory: 64 GB
Boot ROM Version: 1037.120.87.0.0 (iBridge: 17.16.15300.0.0,0)
Serial Number (system): C02D701B0833
Hardware UUID: 194321EB-0D00-5884-9E72-9D69F40B8AE3
Activation Lock Status: Enabled

Nice specs, but they did not changed over night, did they?
Updates of OS, however, are usually set to auto update.

What version of SketchUp? [menu] SketchUp > About SketchUp

What OS? Apple icon in the top left > About this Mac.

SU version THE SU VERSION IS 20.2 (20.2.171)
MAC OS VERSION IS 10.15.5 (19F101)

I always turn off auto updates.

Your profile is out of date.

Profile for?

I am able to work on the model but can’t save. seems to only be happening with this file. (163MB) the recover file does have most of the changes, but I can’t get the recovered file into layout to finish these docs. Crashed every time I try to save.

This is really not good. Just missed a major deadline. Is there a way to recover the file?

some of the report from crash:
Process: SketchUp [5746]
Path: /Applications/SketchUp 2020/SketchUp.app/Contents/MacOS/SketchUp
Identifier: com.sketchup.SketchUp.2020
Version: 20.2 (20.2.171)
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: SketchUp [5746]
User ID: 501

Date/Time: 2021-01-15 04:05:11.129 -0500
OS Version: Mac OS X 10.15.5 (19F101)
Report Version: 12
Bridge OS Version: 4.5 (17P5300)
Anonymous UUID: 92ED46CA-5601-038C-2747-3ABE85322073

Time Awake Since Boot: 23000 seconds

System Integrity Protection: enabled

Crashed Thread: 0 CrBrowserMain Dispatch queue: com.apple.main-thread

Exception Type: EXC_BAD_ACCESS (SIGABRT)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000050
Exception Note: EXC_CORPSE_NOTIFY

VM Regions Near 0x50:
–>
__TEXT 000000010bc70000-000000010c514000 [ 8848K] r-x/rwx SM=COW /Applications/SketchUp 2020/SketchUp.app/Contents/MacOS/SketchUp

Application Specific Information:
abort() called
ViewBridge hint(s): (
“bridge key: most-recent-completion”
)

Thread 0 Crashed:: CrBrowserMain Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x00007fff69b3b33a __pthread_kill + 10
1 libsystem_pthread.dylib 0x00007fff69bf7e60 pthread_kill + 430
2 libsystem_c.dylib 0x00007fff69ac2808 abort + 120
3 Ruby 0x000000010c94fbe9 die + 9
4 Ruby 0x000000010c94fe48 rb_bug_context + 600
5 Ruby 0x000000010ca413f1 sigsegv + 81
6 libsystem_platform.dylib 0x00007fff69bec5fd _sigtramp + 29
7 ??? 000000000000000000 0 + 0
8 com.sketchup.SketchUp.2020 0x000000010c1bbcf4 CViewPage::CheckValidity(ECVTestType, CheckValidityData*) + 1520
9 com.sketchup.SketchUp.2020 0x000000010c14f774 CPageList::CheckValidity(ECVTestType, CheckValidityData*) + 436
10 com.sketchup.SketchUp.2020 0x000000010c18a053 CSketchUpModel::CheckValidity(ECVTestType, bool) + 1605
11 com.sketchup.SketchUp.2020 0x000000010c1d18b4 0x10bc70000 + 5642420
12 com.sketchup.SketchUp.2020 0x000000010c1d1845 CheckValidity::CheckBeforeSave(CSketchUpModel&, bool) + 22
13 com.sketchup.SketchUp.2020 0x000000010c1ae21c SketchUpModelWriter::WriteModel(CSketchUpModel*, SketchUpModelWriter::Version, atlast::mfc::CFile&, SketchUpModelWriter::Options const&) + 39
14 com.sketchup.SketchUp.2020 0x000000010c1ae3ea SketchUpModelWriter::WriteModel(CSketchUpModel*, SketchUpModelWriter::Version, atlast::utils::atlast_ustring const&, SketchUpModelWriter::Options const&) + 360
15 com.sketchup.SketchUp.2020 0x000000010c185204 CSketchUpModel::Save(atlast::utils::atlast_ustring const&, SketchUpModelWriter::Version) + 24
16 com.sketchup.SketchUp.2020 0x000000010bc8eaa9 CMacSketchUpDoc::WriteToFile(atlast::utils::atlast_ustring const&, SketchUpModelWriter::Version, bool) + 77
17 com.sketchup.SketchUp.2020 0x000000010bc8ea13 CMacSketchUpDoc::SaveDocumentWithVersion(atlast::utils::atlast_ustring const&, SketchUpModelWriter::Version) + 43
18 com.sketchup.SketchUp.2020 0x000000010bc73fdc 0x10bc70000 + 16348
19 com.sketchup.SketchUp.2020 0x000000010bc73dc0 0x10bc70000 + 15808
20 com.apple.AppKit 0x00007fff2d21efaa -[NSDocument writeToURL:ofType:forSaveOperation:originalContentsURL:error:] + 419
21 com.apple.AppKit 0x00007fff2d90aabb -[NSDocument(NSDocumentSaving) _writeSafelyToURL:ofType:forSaveOperation:forceTemporaryDirectory:error:] + 825
22 com.apple.AppKit 0x00007fff2d90b6ca -[NSDocument(NSDocumentSaving) _writeSafelyToURL:ofType:forSaveOperation:error:] + 28
23 com.apple.AppKit 0x00007fff2d913dea __85-[NSDocument(NSDocumentSaving) _saveToURL:ofType:forSaveOperation:completionHandler:]_block_invoke_2.903 + 240
24 com.apple.AppKit 0x00007fff2d913ced __85-[NSDocument(NSDocumentSaving) _saveToURL:ofType:forSaveOperation:completionHandler:]_block_invoke.900 + 383
25 com.apple.AppKit 0x00007fff2d912675 __85-[NSDocument(NSDocumentSaving) _saveToURL:ofType:forSaveOperation:completionHandler:]_block_invoke_3.807 + 1912
26 com.apple.Foundation 0x00007fff3246b837 __110-[NSFileCoordinator(NSPrivate) _coordinateReadingItemAtURL:options:writingItemAtURL:options:error:byAccessor:]_block_invoke.356 + 262
27 com.apple.Foundation 0x00007fff3222568f -[NSFileCoordinator(NSPrivate) _withAccessArbiter:invokeAccessor:orDont:andRelinquishAccessClaim:] + 531
28 com.apple.Foundation 0x00007fff322e23eb -[NSFileCoordinator(NSPrivate) _coordinateReadingItemAtURL:options:writingItemAtURL:options:error:byAccessor:] + 1177
29 com.apple.AppKit 0x00007fff2d910351 -[NSDocument(NSDocumentSaving) _fileCoordinator:coordinateReadingContentsAndWritingItemAtURL:byAccessor:] + 211
30 com.apple.AppKit 0x00007fff2d911ee5 __85-[NSDocument(NSDocumentSaving) _saveToURL:ofType:forSaveOperation:completionHandler:]_block_invoke_2.802 + 446
31 com.apple.AppKit 0x00007fff2d9116d1 __85-[NSDocument(NSDocumentSaving) _saveToURL:ofType:forSaveOperation:completionHandler:]_block_invoke + 352
32 com.apple.AppKit 0x00007fff2d42b777 -[NSDocument(NSDocumentSerializationAPIs) continueFileAccessUsingBlock:] + 228
33 com.apple.AppKit 0x00007fff2d42be44 -[NSDocument(NSDocumentSerializationAPIs) _performFileAccess:] + 590
34 com.apple.AppKit 0x00007fff2d91156b -[NSDocument(NSDocumentSaving) _saveToURL:ofType:forSaveOperation:completionHandler:] + 89
35 com.sketchup.SketchUp.2020 0x000000010bc75994 0x10bc70000 + 22932
36 com.apple.AppKit 0x00007fff2d25d58b __85-[NSDocument saveToURL:ofType:forSaveOperation:delegate:didSaveSelector:contextInfo:]_block_invoke_2 + 229
37 com.apple.AppKit 0x00007fff2d1ef14e -[NSDocument _commitEditingThenContinue:] + 414
38 com.apple.AppKit 0x00007fff2d1eefa7 -[NSDocument _commitEditingWithDelegate:didSomethingSelector:contextInfo:thenContinue:] + 89
39 com.apple.AppKit 0x00007fff2d25d494 __85-[NSDocument saveToURL:ofType:forSaveOperation:delegate:didSaveSelector:contextInfo:]_block_invoke + 389
40 com.apple.AppKit 0x00007fff2d42b127 -[NSDocument(NSDocumentSerializationAPIs) performActivityWithSynchronousWaiting:usingBlock:cancellationHandler:] + 502
41 com.apple.AppKit 0x00007fff2d25d309 -[NSDocument saveToURL:ofType:forSaveOperation:delegate:didSaveSelector:contextInfo:] + 110

If that can help you :

I installed SketchUp 2018 on an Intel (latest generation) laptop mac with Catalina OS. I still have SU2020 for a month, time to translate my files from SU20 to SU18.

I clearly notice that SU2020 crashes more often than SU2018.

Regarding SU2020, is there a way to stop BugSplat from appearing that is no longer useful?

Corrupt file. Copy and paste to new template file. Saved some work.