#1: Is there any chance that the take-up spool is too large in diameter? Unlikely, I know.
Idea #2: [Based on my admittedly amateur knowledge] The film advance system depends on a spring-loaded roller, running on the take-up film's paper. If this roller was slipping, it could cause your problem [the advance mechanism recognizes sufficient film advance based on the number of turns of this roller]. I suggest cleaning the roller [carefully] with acetone on a cotton swab, in case it has an oil film on it. Next: lightly abrade it with very fine sandpaper to roughen the roller's surface. I have Rolleicord Vb, and have little else to offer. Once it's working - great camera. I love mine. Good luck.