I am trying to use the Nibble tool to clean NoData in three Digital Elevation Models. The problem is that for the first DEMs it works But the last one keeps giving me this error: ERROR 999999: Error executing function Failed to execute (Nibble). I tried in both ModelBuilder and manually and I still get the same error. It occurs during the initialization phase, which indicates there is something wrong there. I do not know what is wrong. Can anyone please explain what is wrong?