LibreOffice 5 crashes on various actions

While working with Calc on Version: (Build-ID: 81898c9f5c0d43f3473ba111d7b351050be20261, Gebietsschema: de-DE (de_DE)) - and before with version 5.0.0 - on Windows 7 Home Premium SP1 x64 - and also on a different Notebook on Windows 7 Professional SP1 x64- Calc keeps crashing on different actions, when switching to Print Preview, when sorting data, when building a sum, …
When going through the restore process, the document is restored, LO restarts, loads the restored document and crashes again and so on ad infinitum.

He, did you try resetting user profile of LibO ?

See: [Tutorial] User profile

No. I didn’t. With all the updates in the past (since LO exists) I never did and all worked perfectly. So that idea never came to my mind. In between I downgraded to 4.4.5. Am absent now for a fortnight but will try 5.0.1 again after my return with your tip.