Please help! Baking issue (I suppose)

[fevergore]

I've made a model in Blender, a hi res in Zbrush and decimated each part with Decimation Master (so hi res was triangulated).

After baking in SP some mesh parts got pinched along the lo poly mesh edges (like here: https://steamcommunity.com/sharedfiles/filedetails/?id=2005131678 ).

Anyone has that? How to solve it?

UPD:

Every part of the model has this damn pinching! With it some materials look like this: https://steamcommunity.com/sharedfiles/filedetails/?id=2005147804

I had edge creasing enabled both in Blender and in Zbrush, but NOT on every edge! So if creasing has something to do with it, then I don't get it!