This is a once-off situation, but I had allowed a download to proceed then switched to another user account. When I returned a notification showed the download had completed and I agreed to allow the update to proceed. Logos crashed with two notifications showing then crashed again just after dismissing them (one click removed both). When I dismissed those notifications the new version (RC4) began to install followed by indexing of a resource (successful).
1348.DoubleCrash.zip
The Error log times are interesting. I wasn't aware of the same crash on 31 Aug but AUDLEB.logos4 had been downloaded about 13 min before it. I obviously ignored the notification for 5.1a RC4 (0594) from 4 Sept on and must have acknowledged another download notification on 7 Sept which included the resource purchased on 5th Sept, and returned on 8 Sept to get the crash notifications!
Note that the system is on Beta channel, so no notification for SR-1.