Recent errors from Control Center - cant update a cell

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I've browsed through other posts and found similar info and solutions to look into, but wanted to see if this was unique, or result of a recent change on Smartsheet end.

Our template has been in place for a few years now. No changes to the cells now throwing errors, and no changes to the sheets that should impact these cells.

Prior to 12/13/2023, no errors were reported. Starting on 12/13/2023, received the following error after a project was provisioned:

The cell it is referencing has always had a formula to another sheet.

Recently the error has changed to the following:


Everything seems fine in the new sheets, and as mentioned, the formulas were always there.

Is this something that has always been there, but is just now being reported?

Thanks,

Tim