No entity drop (item/loot) after updating to 1.14.3 snapshot

1.14.2 game world updating to 1.14.3 snapshot. 

After doing so, no collectible item seems to be dropping. Shulker box etc will not drop after destroy.

Like video shown, hostile mobs did not drop anything upon death (Looting III sword in video). Crops did not drop respective items upon harvest.

Bug showcase on vimeo: https://vimeo.com/user20242658/review/340598291/d64ef686a4

(video recorded after clearing cache before updating the world, so clearing cache does not fix this issue.)