Not Basking

What do you do with a DBT that’s not basking? She is almost 6 months old and has been an active basker until this past week when I switched tanks on her. She was in a 20 gallon and is now in a 90 gallon tank and appears to be quite happy (very active, eating, etc.) and getting along just fine with the other turtle (a 5 inch RES). All the water levels are almost identical to the tank she came out of and she has 2 basking sites to choose from (one of which is her old station), so I’m not sure what the problem is??? She had one small fungus growth on her rear leg about 6 weeks ago, but with treatment, she totally healed within 4 days. I’m afraid if she doesn’t start basking again and totally dry off, she will get another growth. Should I dry dock her or just continue to be patient???? What would you do? Any suggestions? Many Thanks, Jimbo