@kb31908 I reported this issue to TurboTax Moderators some time ago. I've been told this is not a software defect. (I disagree).
Good news, though! Another SC user has come up with a workaround. See the SOLUTION in the thread I'm linking below. It was posted by @Oz01 .
Solved: Unable to Enter Direct Deposit Information TT2021 - Page 3 (intuit.com)
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***