Project compiles shader every single time it opens a level

My project compiles shader every single time it opens a level. It takes forever… it never used to do this. Is this a bug introduced with 4.18? Or is their another explanation?

Similar issue

try upvoting my question… maybe they will look at it more. Not quite sure how that up vote system works… lol

Same issue here. Terrain shaders compiles every time I open the level.

I feel like this started when i installed the substance plugin, but i cant be sure… it also recompiles shaders on standalone play mode!