If it happened to you, that the program prevents you from leaving the unfolded mode in sheet metal – check below, what can you do about it.

Possibility number one is simply reconstruction (CTRL+B) or the so-called. forced reconstruction (CTRL+Q).

Another option is extinguishing the spread in the feature tree, because unfolding the sheet is nothing more than extinguishing the operation Flat-Pattern. So this process should be reversed.