Strange MQXLZ import/export behaviour

Forum: MemoQ support
Topic: Strange MQXLZ import/export behaviour
Poster: Evangelion

Could someone who know their way better than me around memoQ please explain the following case of the "blue arrow" change mark symbol appearing in the following situation in some segments:
- the file was processed on one computer, let's say 90/100 segments were locked with the "proofed" status behind the lock,
- file was sent to another computer via MQXLZ and the last 10/100 segments were set to "confirmed",
- back to computer 1 via MQXLZ + update with options.

Now:
A) Despite the locked status the "update" went for all the segments - MemoQ changes 100/100 segments (and should have only changed 10/100, leaving the locked ones in peace - instead reported to have updated 100)
HOWEVER: once I open the file, my 90/100 segments are locked and the status behind is still "proofed"
C) MOREOVER: some segments that were locked/proofed still have the blue arrow indicating a change by another user. No change was done and segment history confirms this. What the hell?