I am facing the same issue on multiple file that has many components. Also after uninstalling and reinstalling CC and Adobe xd, there is a notification poping up that says to reduce the number of components. So, thanks atlest its not crashing.
But there is another issue, I am unable to open the file which was cauisng the crashing of Xd in the first place.
Sending the crash report.
Macbook pro, MacOS Catalina version 10.15.4, XD version 18.104.22.168 CC Sync 43.51.3.
I am unaware on how to create crash trace. Let me know if you need anything else also guide me for same.