Brown/dry around edges?

I've got this 1 bubba kush pre98 that other than this is doing fantastic. I might have given it a bit more nitrogen than usual but no other changes really. It's just the 1 side of the plant which makes me think it's environmental. It's near the hedumidifier but the side having issues is next to the tent wall.

Any ideas I'd appreciate.

Bump.

if the lights were off you might get more help

taking pics with the lights makes the plants purple

if I had to guess
id say your magnesium def or have magnesium lock out

but that's a guess

try spraying with 1/2 tsp per gallon Epsom salt
see if the leaves flatten out and lose the taco leaf (margins curling up along the edge)
and add 1/4 tsp Epsom salt to your waterings

if your over doing the nutes you can lock magnesium out

if your not over doing the nutes is magnesium def

K thanks. Ill try to get some better pics if it continues. I came to the conclusion & started adding Epson salt, then flushed before flower.

I edited my post

Thanks.