Main cola problem - WTF is happening ?

This happened over a couple of days. The cola is about 12" long but exhibits excessive leaf growth - this the only area on the whole plant. All other side branching seems ok.

This an AUTO ( blue cheese ) , in FFOF soil with Light Warrior and 10% more perlite .
Schedule : 12/12
Water : PH 6.4 - 6.6
5 gallon smart pot
Nutes : Dyna Gro Bloom ( 1 tsp per gallon )
Hydroplex ( 2 ml per gallon )
Liquid seaweed ( 1 tsp per gallon )
Dolomite lime ( top dress )

I do notice some edge burn and tips .I flushed medium . I am gonna grab the CALMAG
Anyways the cola looks a bit odd to me , not like I usually grow. I'm wondering if this is something between stages. Or ?

I noticed bud development is looking stalled. I'm hoping it didn't REVEG. But I don't see how it even be possible because it's an AUTO and cannot revert back because of that missing genetic characteristic.

I've been wondering if I should place her in darkness for a couple of days to RESET the bloom cycle.

This is a soil grow and am open to some solid suggestions.
And any suggestions on the leaf edge issue

Brown spots could be a cal/mag issue. The excessive foliage is a sign to cut nitrogen. What is up with the white spots? They don't look circular enough for powdery mildew but probably some type of mold. A diluted H2O2 spray should take care of that.

Nitrogen Toxicity is my first bet for your biggest problem. I had a plant that looked just like this, I did a good flush and ran straight water for two weeks and new growth looked better, but I wasn't as deep into flower as you are. Cut N and add a bit of cal-mag to your program, see if that helps. I essentially agree with @Bugeye but I definitely see N Tox in that photo.

N tox.

Once flowering starts...I totally stop feeding them...if the fan leafs are healthy going into flowering, they will provide the nutrients needed to fill in the buds.

Alrighty then , I did a good flush yesterday . But adding CALMAG to her watering from now on and keep her on an IV DRIP ( haha ). But definetely back off the nutes for now.

Punk said:

Once flowering starts...I totally stop feeding them...if the fan leafs are healthy going into flowering, they will provide the nutrients needed to fill in the buds.

Click to expand...

Sounds good to me ... I'll try it.
Thanks