Is there an easy way to create a material that is the same size no matter the size of the mesh?
I tried using the texture coordinate node but you have to play around with it to try to get almost the right size.
This problem seems to be due to the UVs not matching each other in terms of scale in relation with one another. In your modeling package, apply this material or a checkered one to your assets and scale the UVs until they are uniform. Don’t be afraid to go outside the bounds, it’s necessary at times.