Creepers not droping CD's

I use a piston trap system to contain a creeper and have a skelly inline with trapped creeper. Up until today 9/21/2021 all creepers killed by the skelly in this trap would drop a CD. Now there is nothing but gunpowder. 

 

Told I should use search for bug issues already reported... The search clearly didn't pull up the result of another post when using the keywords Creeper cd