Steps to Reproduce
Open Writer or any other app
on top panel there is the first left icon (create new)
press arrow next to it and press Presentation (spreadsheet whatever)
All LO crashes
Do it twice
It is problem with all dropdown buttons
I can't reproduce this on Linux (5.1 master, or in 5.0)
Can you update with OS?
Reproduced with Version: 220.127.116.11.beta1+
Build ID: 7f49a466e85b5f5866e6af28d84ed06697e49d20
Locale : fr-FR (fr_FR.UTF-8)
Already tracked by bug 91404.
Best regards. JBF
*** This bug has been marked as a duplicate of bug 91404 ***