Build: 3724 Mode: All Mode: All SERVER NAME: N/A SEED-ID: N/A If applicable: MODIFIED PLAYFIELDS: N/A Reproducibility: Always Severity: Trivial Type: Blocks Summary: Certain blocks show as airtight with O2 debug overlay, but are not. Description: Stair blocks all types & Variants, CV/BA Corridor Bulky Wall B. SV/HV Ramp C low. Steps to Reproduce: 1) Add above mention blocks to an airtight box CV or BA 2) Add a ventilator oxygen and turn on O2 3) Turn on O2 Debug