Hi everyone, I'm having an issue with a Bronica GS-1 I just purchased off ebay. The seller assured me everything worked properly but after testing out the camera, there is definitely a film advance issue happening. I've uploaded a video explaining the issue which was originally intended for the seller to view (https://www.youtube.com/watch?v=g0tr4uh6Eyo&feature=youtu.be). Sorry if I seem a little annoyed - it has just been very frustrating trying to figure out what's happening. Basically, everytime I load the camera and try to advance the film, the counter on the film back is not moving correctly and it also feels like there is too much tension in the film when im moving it forward. I've tried advancing the film with the manual knob on top of the back, i've tried with the film winding crank, and with the speed grip and none of them have fixed the issue. Any help is much appreciated!