Got my hands on a Fuji GSW 690 II and was running a test roll through it. Everything was working fine and at the end of the roll was doing the last few strokes to disengage the film from the supply spool. The film disengaged right at the end of a wind stroke but after that the wind lever would not return back to a neutral position, it got stuck at the far right end of the stroke (see pic). This thing feels like a tank so I did not think there was a danger of overwinding. Does anyone have any suggestions for a quick fix or is this professional job? Thanks.