Looks more like you manifolded it ... Autos hate high stress training as they cannot recover that quickly as a reg plant.
Stunting is a possibility as it may think it’s damaged . Autos are plug in play , plant them and let them be.
However there are methods to “ shape “ them .... simple tie down. “ Some “ autos can be topped ( once ) but not all.
Stalling an auto leads to less than stellar yields as it tries to limp to finish , some never move and have to be forced flipped.
Autos just want to grow and flower under its OWN schedule , muck that up with stress , overwatering, overfeeding and other shit impacts it.
Autos take approximately 5-6 weeks from germ to head to transition ( sex ) and preflower , screw up their already short veg stage and it reduces the final yield. Many growers run a long initial light cycle ( 24/0 - 20/4 ) to bolster that short veg cycle to get it to root and structure as best it can before next stage starts. The old saying about AUTOS ... “ Once you pop them , you cannot stop them “.