Help with LSD auto issue

The plant was doing well. I fimmed about 10 days ago and it seemed to recover fine. Watering when pot is light, meter says dry, every 3-4 days. 32 oz filtered water PH’s to 6.5. First nutrients added were Monday (beginning of week 4). Used Jack’s 321 at 50%.
This week I added some LST and after that the branches that were tied down started showing distress.
Today I released the LST and watered with 32 oz filtered, ph’d water. Raised the light from 18" to 22"and decreased to 70% from 100%.

I may have been too aggressive being an auto?

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moved post to Grow Support/Autoflowers