Why does Studio 2017 not update saved segments properly?

When I save a segment to the TM and then perform changes on the segment and save it again, the changes will not be updated properly, and the match I will get does not reflect the changed segment but the initial status of the segment when saved first.

This is also true for MultiTerm entries. They just do not update. Even though I delete entries, they will still appear as if nothing ever happened.

Also, Studio 2017 SR1 really crashes significantly often as opposed to earlier releases.

I observed another strange behaviour: auto-propagated segments do not appear in the TM when you set the cursor into this segment in the editor, i.e. they are not recognized as matches.

Would be interesting to know if anyone has made similar experiences.