roof leak or AC 22
https://wiki-square.win/index.php/Austin_Roofing_Company_Leak_Guide:_Is_It_a_Roof_Leak,_AC_Condensate,_or_Attic_Condensation%3F
I had water dripping from the ceiling last summer, and after some investigating, I found out it was from a clogged AC drain line—it actually looked a lot like a roof leak. The excess moisture caused the same kind of stains and peeling paint near the vent, so it's worth checking the AC unit first if you see that kind of damage.