Forge Eternal 'Loading Terrain..'

Using 1.16.5 standalone for Forge, all mods get loaded, but when attempting to render and load a world or terrain from servers, the client just doesn't load it.

It's been known to work in tandem with all mods I use, ForgeHax and Optifine.

Am I using the wrong versions?

baritone-standalone-forge-1.6.3.jar
Optifine_1.16.5_HD_U_G7.jar
Optiforge_MC1.16.5-0.5.4.jar
ForgeHax-1.16.5-3.3.0-6431a082.jar
Vanilla launcher
Win10

Plus, ForgeHax only ever uses chat strings as compatibility, so I reckon the problem's not on ForgeHax.