The 1.1.1 patch is not the fix for the 11.50b15 bugs, those are regressions on the side of Laminar and will be fixed by an X-Plane update.
Looking at the log, right around the time the sim shut down, this message was printed: [Line 1248] "XCD Scenery Technology AeroDesigns KCMH: Out of range, stopping"
I'm not sure if that is the cause of the issue, but it seems very suspect.