Materials mess up model imported into Blender from Roblox

[EKmaster2005 (EKmaster)]

I exported my model from Roblox and imported it into blender as an obj. The problem is that it did not happen properly. I believe images will explain it better as I am very confused.
Here is the model in solid mode(no materials rendered) The shape looks good.

Here is the model in material mode

It’s very messed up and looks unfinished.
After trial and error, it turns out the materials were the culprit. When I removed them everything was normal
Solid Mode:

Here is the model in material mode:

Here is the materials tab before removing them:

The problem with the solution of removing the materials is that I have to manually materialize everything. That can get very tedious, especially considering the same thing happened to a FULL map that I imported. Therefore, what can I do to fix this whilst keeping the materials?

[angus23lego]

Open the shader error and look for a second image node connected to the alpha. Select that and press X to delete it and it should fix the issue.

[EKmaster2005 (EKmaster)]

I tried that but it didn’t work. (I did for all the material files to be sure)

I think this is more of a render issue since blender grid lines seem to go through the model(in my second pic). Also when I switched to cycles, it looked perfectly fine(in rendered mode), but I need to use evee.

[EKmaster2005 (EKmaster)]

I fixed it by changing the blend mode to opaque. However, it was quite tedious since I had to do that for every material. Perhaps there is a faster way?
Don’t know why the color for the face is messed up though