Wow, that's indeed a very nice run! Probably the first ever to go over 100 months! My best was 96 months, but that's still with v1.0, so no attack indicators. With the new version, was too busy trying to break it so far rather than pushing it. Looks like going into uncharted territories here :)
You mentioned glitches on attack indicators but from a player's point of view I don't seem to notice anything excessively wrong.
Every attempt seems to go farther, my last one is 113:
The only visual glitch I notice is sometimes at the very beginning of a round there is some diagonal 4 bullets being silently shot by some turret which is quite near the bottom (just like some bullet/animation from the queue of the previous end of round?).
Wow, going far there! :) ... Yes, those glitches I also noticed, some cleanup is missing after the waves (a cannon shot is left hanging to go off at the beginning of the next wave). The attack indicators were supposed to appear biggest & strongest dragons first, which isn't quite so (but OK gameplay-wise, a bit random what reveals first).