Damn๐๐ค that really sux bro! I'm just wondering from a previous comment you made about heat after air - con goes off(33ยฐc) going up. Maybe it could be a combination of both. The heat allready stressing plants & added light leak. To help with these factors in our climate in OZ I run my LIGHTS ON time at 6.pm until 6.am for flowering (12hrs) & 6pm untill 12noon (18hrs). It does work to reduce heat in our summers!!! My temps also rise to around 31ยฐc to 32ยฐc, right after light's on. I run my 6" exhaust system on full 24/7.
I have a dedicated grow room (spare room) with black out curtains that house's my veg & flower tent & propagation area, I run 2 into 1 ducting system, so both veg & flower tent ducting merge just before they exit into 1 through an air con exit piece. The block out curtains work to completely block out ANY light day or night
like