0. ALWAYS PROVIDE INFORMATION ABOUT MODLOADER (Fabric / Forge) AND MOD VERSION (For Example 1.19.2-8.2.10)
   Forge 1.16.5-36.2.39 / Travelers Backpack 5.4.42

1. Describe the bug
   Since I added Effortless Building to my Minecraft SMP, the backpacks started to dissapear from your back when you join the server, but everytime you die/kill yourself, it appears on the floor and you can pick it up

2. Write steps to reproduce the bug
   Not sure, but: Install Effortless Building, have a backpack equipped, quit Minecraft, go back, and the backpack should be gone

3. What is expected behaviour
   That the backpack stays in your back and works normally

4. Screenshots (If applicable)

cant reproduce this issue