I'm having some problems with renders recently.
First when I render some effects, the blue dot stays there and playback is sluggish. If I try to render them again, it still takes the same amount of time to render them and the blue dot stays there like if the first render never happened. As soon as I close the project and reopen it, the blue dot disappear and the effect seems to be rendered. Didn't find anything consistent. It just happens sometimes and with different effects.
Other problem is with rendered effects not clearing themselves when I modify them. Let's say I have a stack of 3 effects on 3 different layers, when I make a modification to the effect on layer 2, the render on layer 3 is not cleared. I have to clear it manually to see the modification. That's supposed to be automatic, isn't it?
I'm using version 8.5.2