All at Sea Hideout tileset gfx problems

Hi,

I have my own special made hideout of the purchased "All at Sea" hideout.
Had the same hideout last league with no problems. Now it looks like I have to scrap the hideout I bought.

I know some people sit on potato-pc setup. But this is like nothing else.
~95% of trades takes a long time for people to load. and ~5% of people crash/disconnect.

I know you could assume I have some crazy decorations, but I have not.

This has to be connected to the gfx updates late last league/this league.