Cannot enter explanations in Line 52A of Form 5329T

For my Beneficiary IRA I did not withdraw a sufficient amount to meet my RMD for 2025.  I found the error today Feb6, 2026. I filed out a form 5329T form and asked for a waiver. selected explanation button. When I entered text of the first line, it disappeared when I pressed <R+TAB> or Enter.  Vary frustrating.  No error message. Tried to get help from Intuit    Person help[ didn't know . Tried to get me to an expert and got disconnected. Long wait time so I am posting it here.