UI will not Load

[Kevin]

This sounds like it might be related to world size, could you follow this tutorial and provide some information and screenshots from it?

World Size Check

Introduction An oversized world is a world that uses a lot of data storage. A world that is oversized, or takes up too much data storage can result in difficulties/slowness loading into the game, or outright instability while playing. We explain why world size matters, how to check world size, and resolve any issues with it below. Why world size matters World size matters because users may start to see increased loading times around the 30+ MB mark. This is because Foundry VTT sends the worl…