I have a stored procedure without any return variable, then I alter
the procedure adding an output variable. I do a backup without
problems, but when I restore the database, I get
"Invalid request BLR at offset 163. Output parameter mismatch for
procedure SP_INVENTORY_UPDATE."

Before altering the SP, I could do backups and restores without
problems. I am using Firebird 2.0.

Have somebody a clue about how to solve it?

Thank you