Describe the Bug

When a copycat pannel is decorated with a light block like sealantern,they send out brightness like a normal sealantern,but once the chunk where the copycat pannel was placed was unloaded,the copycat pannel lost their brightness,the blcok light become zero.

Reproduction Steps

1.Place a copycat pannel
2.Decorate the copycat pannel with a ligt block like sealantern
3.Leave away from the chunk you placed the copycat pannel
4.Back to the chunk found the copycat pannel lost brightness

Expected Result

copycat pannel decorated with light blcok keep their brightness after chunk is unloaded.

Screenshots and Videos

Before the chunk is unloaded

After the chunk is unloaded

F3 show the block light is zero

Crash Report or Log

No response

Operating System

Windows 10

Mod Version

0.5.1f

Minecraft Version

1.20.1

Other Mods

modmenu-7.1.0
magiclib-all-0.7.346+e235d92-stable
architectury-9.2.14-fabric
embeddium-fabric-0.3.11+mc1.20.1
fabric-api-0.92.0+1.20.1
fabric-language-kotlin-1.9.6+kotlin.1.8.22

Additional Context

No response

The same thing happens in the Forge version: https://github.com/Creators-of-Create/Create/issues/4889.

Upstream issue