Players' CL stats not updated

Two of my players had all zeros in their Champions League stats for this whole season despite playing and scoring/assisting regularly. I can provide screenshots if necessary.

Obviously this didn't really hinder my progress as the match results and rewards remained in place, but still does this have a possible fix?

For the record, I think both of them spent a day in the players academy over the night when previous season finished and this one started, so I suspect that might have resulted in this CL bug.