Hello all. Issue I am having: I own an ETRSI body, with 2 120 mags and a 220 mag. I load the 120 mags per the instructions. (I am not new with loading 120 mags). Load the magazine, remove the darkslide and wind the film to 1. I will start shooting and then the magazine will reach to count 6,7 or 8 and the wind will not cock and lock the next frame, instead the winder just spins freely. This is happening with both 120 mags. Now i tried it with different body and its still happening, is it possible that I have two bad magazines? I searched the forums and couldnt really find anything related to my issue. Any help would be appreciated.