Drowns with tridents do not drop tridents at all

Ok a little back story I’m making a farm with tridents and I go to kill some drowns. I have looting 3 and I kill about 20-ish drowns with tridents and none drop any trident which is really sad. The first 3 I though were bad luck but after the 5th it was a little odd. Also this is bedrock we are talking about so they should have at least dropped one. Because I mean they have a drop rate of about 15% so this is really annoying for anyone trying to make a trident killer. It could just be my device though.