Material Editor ERROR Help

When I use the terrain material editor, I want to recolor the terrain texture that I have, I got the error you have unsaved terrain changes, save level and so on on all maps. Reinstalling and clearing the cache does not help. Help me please

 

I don't think we have enough detail to help you.. but there is a save changes button in the material editor window. You shouldn't need to clear cache for material changes to work.

 

it's not an error, it's just to remind you to save level so you don't forget

 

Okey how it fix ?

 

there's nothing to fix, just save the level and this message will be gone