Well, you’re the fourth person in 3 days, I wonder if the very last update from sonoma touched something ?
anyways, since I’m a bit lazy under the weather, I’ll copy my message from another thread 
you should keep an eye on this thread, it’s about su 22, you’re SU23, but it might be related as you have similar symptoms.
when it crashes, 3 situations :
- do you get a bugsplat ? if so, do you send it properly ? (so colin can look at it and maybe see the problem)
- if no bugsplat, do you get an apple crash message ? if so, you might need to copy it in a text document and provide it.
- nothing ? nothing is not good, it means neither sketchup nor macos see this as a crash.