There's an existing thread on it.

AND, is this for individual/S/C/Partnership/Fiduciary.... all of the above???

I stated in that thread that I am not seeing that issue; but I delay proforma'ing until the last possible moment.  Try re-proforma'ing to see if it still happens.

2022 Proforma to 2023 - Depreciation Does Not Transfer ‘-1’ for SDA, State if Different

Search for the above in Lacerte Tax News and Updates.

Is this what may have happened? We did encounter this and checked manually a few clients that were already in progress and reproforma'd the rest.