Steps to reproduce:
Turn mob loot off in settings, or say “/gamerule domobloot false”
Spawn some small slimes or magma cubes
Spawn a frog
Wait until the frog eats the small slimes or magma cubes
Expected results:
When the frog eats a small slime or magma cube, it doesn’t drop a slimeball
Observed results:
When the frog eats a small slime or magma cube, it still drops a slimeball or froglight, despite mob loot being turned off
Notes:
This doesn’t happen in Java Edition.
Video: