If your client has no filing requirement for F.2441, you can just leave them all there without affecting the 2020 return.  These will then be proforma'ed to 2021 when you do the rollover.

Yeah, that was the plan but I got an efile error.

Unfortunately, it's unlikely Intuit will step in to resolve this (or at least not unless you're willing to spend more time than it may be worth).  I'd just copy down these details if need be for reference, remove the entries, and move on to the next return.  But that's just me.