I recent went on a trip shooting with my Super Ikonta IV. I shot two types of film. The first type is Arista EDU Ultra 120 and Fuji Acros. The issue is spacing of the frames. On the Arista EDU film has evenly spaced frames with the thicker base. However, with Fuji Acros, there's no space between the frames and at times, a slight overlap. The base is thinner with Fuji Acros. Is the thickness of the film causing the problem?