This behavior was introduced in 26.1-snapshot-3.
Steps to reproduce
Method 1
Drop a few items on the ground, or place a repeating command block that continuously summons items. For instance, the following command can be used:
setblock ~ ~ ~ minecraft:repeating_command_block{auto:1b,Command:"summon minecraft:item ~ ~1 ~ {Item:{count:1,id:\"minecraft:apple\"}}"}Walk near the items to pick some of them up.
→ ❌ The item pickup animation will not be visible.Move the camera in various directions, possibly also toggling the perspective (F5).
→ ❌ The item pickup animation will display at an incorrect location.
Method 2
Summon several villagers.
Throw lots of bread at the villagers.
Wait for the villagers to exchange the bread between each other.
→ ❌ The item pickup animation will sometimes not be visible between the villagers.Look at the villagers from various angles.
→ ❌ The item pickup animation will display at an incorrect location.
Can Confirm, this affects Allays too