Good news (I hope)!
I was finally able to make progress on this. On the machine with the fix, I was able to open a diagram created by SSMS 17.9.1 (on a different machine). The same diagram opened with 18.3.1 resulted in a crash.
I’ll do more testing in the next few days and go over all the comments on this page to make sure I capture all the scenarios and make sure they are really fixed.
It’s looking good, I really hope… :)
-MatteoPaulo De Jesus supported this idea ·Paulo De Jesus commented
I've been having this issue for a long time. Every time I upgrade I'm hoping it is fixed but SSMS still crashes with no error when trying to open a database diagram. Very frustrating!
Any update on this?