Creepers do not drop discs if killed by skeletons

Hi! 

I really like music discs and i often trap creepers in a boat so skeletons can kill them. I was playing yesterday, when 1.17.30 came out and updated. When i tried to get a disc from skeleton killing a creeper, it didnt drop. I tried many more times and it still didn't work.

 I don't know is thet supposed to happen, but

can you fix it please?

Have a good day!  

 

P.S. sorry if i did not mark something I am new.