Can only use limited amount of materials on landscape - UE5

Question

I've been dealing with an issue lately where when using a certain amount of materials or material functions on a tile in my landscape that tile reverts to the default material. Here's a picture of the base for all the material functions I'm using: The tiling function and mapadjustments function are both from the megascans presets library.

This is my landscape material: It looks like that for troubleshooting purposes, normally I would be blending the functions but I'm just trying to simplify it to find the issue. The tile reverts to the default material after 6 have been applied to it.

It looks like this:

All my texture samples are set to Shared:wrap, I'm using all megascans materials. There's only a few people who have had this issue and none of them had a solution that works for me. I'm thinking it might be a limit in the amount of material functions I can use but I don't know how to bypass that, it could also be a limit in the amount of textures I can use but I again don't know how to bypass that. Any help would be really appreciated.