shulker items inside tooltip not visible since paper-1.21.4-79

[ikuria]

Expected behavior

https://discord.com/channels/289587909051416579/289587909051416579/1327255285542158397
old

new

maybe there is something broken? :)

Observed/Actual behavior

shulker tooltip is empty

Steps/models to reproduce

put stuff in shulker and this shulker into a chest, to view the lore - hover over it ;)

Plugin and Datapack List

• mods deactivated
• no plugins changed between paper versions

Paper version

This server is running Paper version 1.21.4-82-main@08fc33c (2025-01-09T18:13:41Z) (Implementing API version 1.21.4-R0.1-SNAPSHOT)
You are running the latest version
Previous version: 1.21.4-79-b34ae4f (MC: 1.21.4)

Other

No response