Yes, this is the issue with respect to whether to claim the Recovery Rebate Credit or not claim it in ambiguous situations. Will the IRS computers just adjust it, or will the returns just fall into a processing black hole? Whatever happens, any delay will be the preparer's fault in the mind of the client.
Since you have to use 2019 on both EIC and child credits if higher, be careful because you have to manually select both.
on Sch EIC Step 5, 2 you have to check the box. Then go to Sch 8812, 6a and manually enter the 2019 amount.
If someone is doing the way I am doing it, let us know. If doing it different, please share.