Have you looked at some of the other threads on CBR here?
Experiments have shown that some releases have had issues with CBZ files. In all cases if the CBR is a misnamed CBZ or the CBZ a misnamed CBR it will not work,
See
https://www.mobileread.com/forums/sho...&highlight=cbr or
https://www.mobileread.com/forums/sho...&highlight=cbr
Can you do two things
- Report what f/w level toy are on
- Validate the actual format of the CBR file by opening it via a text editor and looking at the first few characters; CBZ starts with PK and CBR with RAR!