The precheck is failing for me on Magic DRC. Is there a documentation I can read on meaning of met4.5b? Any suggestions I should try?

STDOUT: {{STEP UPDATE}} Executing Check 7 of 13: Magic DRC
STDOUT: Found 6 violations
STDOUT: Violation Message "Metal4 > 3um spacing to unrelated m4 < 0.4um (met4.5b) "found 6 Times.

https://github.com/roman3017/caravel_mpw4.git

Maybe check out this thread on #openram https://skywater-pdk.slack.com/archives/C016ULUQXDF/p1640165121179900

Thanks, that seems helpful.