Yellowing leaves

I thought it was a lockout so I flushed for a few days and now giving them 1/4 strength feed there seems to be no more yellowing also I will raise the humidity to 65%, ive 100% overwatered them In week 2+3 but now waiting till pots feel light and top inch is dry until watering hoping it gives it the right oxygen for the roots. Would I be better starting over again or is there still hope for these?

it seems to me that the plant is blocked with the substrate soaked, the roots need to breathe to develop. The humidity of your grow is also low. in vegetative growth it should be 70% -80%, this will help your plant to have a more vigorous growth, on the other hand it also seems to lack magnesium or calcium, this also happens due to the blocking of the roots by accumulation of mineral salts. Good luck mate

I did last week when it first occurred gave it 3 whole days of PH’d water(5.8) only just started back with the nutes should I flush again to get rid of excess salts, nutes etc ? Then start feed schedule over again

I'd flush it mate