Pehkui Works for me but not for friends

I have Pehkui installed on my server and my friend has it installed as well. (I can change my size and it works perfectly fine)

BUT the scale doesn't show up on my friend's screen. Like I set my scale to 1 1/2 blocks but it would show up as a regular 2-block player. Is there a way to fix this?

Quote from PluginsMaster

What mods do you have on your server?

Fabric API 0.36

Lithium 0.7.2

Origins 1.0.3

Pehkui 2.3.0

The server runs on 1.17