First time I have had issues this early on.

All my girls are showing a similar nutrient issue. This is my first time doing a photo grow and first time transplanting. I moved from 1.5 to 5 gallon pots a week ago. Im guessing its a temporary lockout because the dirt I transplanted them into is really hot. Soil ph is 6.5 (checked with blue lab soil meter). Watering at 6.5ph (dechlorinated tap water). This is the soil im using. https://www.m3michiganmademix.com/

Any ideas?

Planning to switch to flower in about a week.... Would like to see them looking better.

This is how she looked 2 weeks ago.

No opinions/advice?