When any job is coated with UV, then scored and also folded, the job begins to crack. While using, the cracks will get bigger and the ink might chip off too.
CLOSE UP SCORING
Scoring
When coated jobs are scored and then folded, Cracking is inevitable. If you do not Order the job with UV, it will help but it may not avert this. As your job is used and folded with time, cracking will become inevitable.