Just want to report in that I just had a frame counter issue with my black S3 re-issue. I noticed while reloading that the frame counter did not reset, and also did not advance past frame 34-35.
I removed the counter cover, and saw that the metal spring inside had become partly unwound, so it was overlapping itself. I'm not sure if this happened when I removed the counter cover or if it had happened earlier some way, but I simply unwound the spring and wound it back on again. I also unscrewed the frame counter dial and screwed it back, so it's unclear if it was the screw's fault or the spring's fault. Either way that solved it, and the counter now resets and moves as it should again.
For anyone who hasn't done this before but has the same problem, please note that the frame counter dial and the counter cover does not have any set points for alignment - when you put them back, it's best to let the counter reset, then wind forward one or two frames and then aligning the counter cover's indicator with the zero mark on the dial.