This problem was driving me crazy until now (Since SNAP Update v10.0) All my other solutions were giving me very different results, no always good. Today a colleague found the error and fixed it. The problem was in the file “snaphu.conf” produced by the operation “export to” in the unwrapping menu:
There, the “CORRFILE” field is empty, so I filled that space with the correct name:
This is the result:
Save, and now, again is working properly in the SNAP V 12. (@ABraun )