Description
When i try to use placeholderapi placeholders on holographic displays, they just stay the same. I have also installed ProtocolLib and HolographicExtensions but it still didnt work. I have tried restarting the server many times too to no avail. I don't even get an error in the console so i dont know whats wrong.

(Sorry if i did anything wrong, this is my first time using github)

How to reproduce
Use placeholders on HolographicDisplays

Platform
Server version: SPIGOT-1.8.8-R0.1-SNAPSHOT
Holographic Displays version (check with /hd): 2.4.6
ProtocolLib version, if installed (check with /protocol version): v4.6.0-SNAPSHOT-b492
Do you use plugins to allow players to join with multiple Minecraft versions (such as ViaVersion, ProtocolSupport, ...):Yes

Additional context
None

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