I believe the thread locker fumes cracked your doors. In my installation instructions, maybe it was in the instructions from LP Aero, said DO NOT use thread locker anywhere near the acrylic plastic. It will turn it brittle and crack.
I know it does this on other types of plastic also; I once used Loctite on some plastic bolts on my toilet seat that kept loosening up. The next morning both bolts had broke off.
I just used a little Elmer's glue on my window bolts and tightened them just finger tight or a little more. They have been on for 370 hours now and not one has come loose.