Crashing on load

As title says, unable to launch minecraft with umc and ir installed. due to how UMC is doing some rendering.

Version 1.16.5

```
java.lang.IllegalStateException: Rendersystem called from wrong thread
at net.minecraft.client.shader.Framebuffer.<init> ...
at cam72cam.mod.render.ItemRender.createSprite(ItemRender.java:216)
at cam72cam.mod.render.ItemRender.lambda$register$5(ItemRender.java:130)
```