If I imported a 2021 CBB file, how can I still add the custom logos from the Mod?

Update: I replaced the logos folder with the one from my CBB21 mod and it worked. However, I cannot advance past May 1st - It has been "processing" for over 30 minutes.

I'd suggest you read through the thread for the DDSCB22 - College Mod ( viewtopic.php?f=347&t=34908 ). There's several posts in there about logos that may help you resolve your issue.