I have an issue with building a low poly model for Unreal.
There is the picture of the model in Substance Designer
The same model in Marmoset
You can see there are some weird crosses all over the model. The same crosses are in Unreal
The model very simple and I'll be happy to keep it simple. Here is a Blender view
What do you think how can I fix those issues? It is obviously because of smoothgrouping but why then it works in Substance?