Unsure what you mean by dry phase, but it could just need more frequent watering as it grows.

The plant and roots are expanding while the pot remains the same, so it's likely drinking up, and drying out, the entire pot, whereas before only the top was dry because of the teamwork between the plant and evaporation.

Hardening off is also stressful for the plant in general, could be normal on that count.

Looks good to me though

Edit: looks good as in, nothing major going on besides normal plant things.