Look like it need food and overwatering could cause them dying down so best to add some nutrients for them to alive again but just need let little dry first then feed it when it need to feed time
So i am sugget you to try put 2ml of hydrogen perxoide 3% into 16 oz water and feed it never know maybe help root back alive because that hydrogen perxoide have oxygen help root breath as well and healthy. You can review on youtube
Because that point you was do transplanting of autoflower is not good idea that how it ruin their roots because auto only havt e their final pot to be stay forever till harvest so if you get fem seed as photoperiod it can transplanting....
One of them say autos can’t handle of transplants it’s correct because it’s will be on their final pot forever to grow not have tile to transplant alike photo period plant