GR33 -
I had something similiar happen the other day. I'm growing in a PC Box that just arrived on 8/17. Had a Lowryder x AK47 auto FEM plant growing for about 25 days outside. When the PC Box arrived I dug it up and potted it with FF soil and continued the grow indoors. See pics. I had it in the PC for about 2 days and the leaves were getting brown a little with some leave tips curling up.
I know this is stupid but when the PC arrived I plugged it in and everything worked fine. Found out a few days ago that the intake and exhaust fans were both exhausting. Temp inside was 96 degrees. This went on for a few days at these temps. I turned the intake fan around. Temp is now 86.5 and humidity 32%.
Those burnt leaves are still there.(half burned). All new growth is doing fine.
Thought I would throw that out there.
Probably