Crash When Closing Montage

I’m always getting a crash if I close a montage while it’s creating peak files. I wouldn’t think much of it, but it doesn’t happen in Wavelab 8.5. Anybody else?
Using 9.5.50 on Win 10.

Normally there is a mechanism to wait for the end of peak file generation, but maybe it has been broken. I add this issue to my todo list.