I mean that all Effect parameters works fine with cached Accumulete preview except Tint parameter. After using it we loose final rendered ( accumulated ) viewport preview.
I think what you’re trying to say is that the Tint Slider overrides the Effect Settings that you have set up.
If so, I don’t think it is a bug or a problem. This is essentially the entire logic of the Tint Slider, which involves adjusting the Green and Magenta Ranges. You don’t need to have the values at maximum; you need to balance them with Temperature, etc. (Just like any other photo editing software)