End of 21

The two plants here in week 9 are different than the one seen in week eight. In actuality, all 3 were seeds that popped the weekend of 11/28/21. Things seemed to be going well and all 3 were beginning to flower a few weeks back and now the 2 pictured here I’m wondering if somehow the have begun to reveg. I know that autos are not supposed to do that at all but bud growth all bu stopped and new vegetative growth has appeared everywhere. I did a heavy defoliation on them particularly the taller one could that have caused the change? Should I be concerned and if so what to do?