Editor stops responding when painting landscape

90% of times I try to paint my landscape (or try to do with anything with any landscape that has material layers) the editor goes into a freeze mode, the process stops responding but does not crash, still taking the same amount of memory and some cpu (30-40%), this issue (the freeze) ocassionally occurs in other situations such compiling blueprints, but it almost always occurs on the landscape.
I’ve tried replacing the landscape with a new one, the same occurs, also tried to look at the log and VS debugging utility, but couldn’t find anything (I still link the log: link text)

Any help would be greatly appriceated.

Hello,

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Thanks