Bug OnDemandRendering causes framerate to double after switching applications

Hello,

I'm trying to use OnDemandRendering to lower my effective framerate during periods of my game where I don't need to be running at 60 fps. It works well for the most part, until I switch to another application on my phone, and switch back to the game. It seems like my effective framerate is almost doubled, instead of halved afterwards.

I tried switching the renderInterval back to 1 when I lose application focus, but the same thing happens. Anyone else run into this problem before?

I've attached a gif of normal behavior (on the left) and the error behavior (on the right).

Here's the relevant code.

Code (CSharp):

1.     private void OnApplicationFocus(bool focus)
2.     {
3.         // if we lose focus
4.         if ( !focus)
5.         {
6.             currentFrameInterval = OnDemandRendering.renderFrameInterval;
7.             OnDemandRendering.renderFrameInterval = 1;
8.         }
9.         else
10.         {
11.             // reset to the current frame interval
12.             OnDemandRendering.renderFrameInterval = currentFrameInterval;
13.         }
14.     }
15.  

 

i have the same issue

unity version :2020.3.15f2, 2020.3.37f1

device: ios, android