Fires on safety - OpticsPlanet Exclusive RISE Armament RA-242 Enhanced Rifle Trigger

Im typically a big fan of RA triggers, this one had a great break and was crisp. However it would fire on safety. I swapped in 2 other triggers and tried it with another safety and this particular one would fire on safe. Sometimes itd get a full strike, other times itd barely press but as soon as you touched the selector to fire itd go off. Very dangerous. Not sure if this one was a dud because i have had plenty of other ra triggers that worked fine, but i wont be trying this one again. Sent back for a refund, just wanted to warn the future buyer to check it on safe to make sure it functions properly before putting live rounds in it