2024 Turbo tax stuck in loop

Using TT 2024 for 2024 Return. Entering Medical Expenses, I get to "Miles driven to get medical care" and TT will not let me enter a number, yet it also says "Value must be greater than 0  You entered 420 mile(s) last year."

and it will not let me go further I tried double clicking on field to get to form and entering the number, and that doesn't work either. I have tried closing the file, exiting TT and restarting it - that's no help.