Bad news, everyone 
Looks like the above workaround doesn’t help under the following scenario…
- Show ad
- Click ad (triggers a web browser to open).
- Without closing the web browser, task switch back to the game.
If you close the web browser first, everything is restored, but if you don’t, you get the same issue as above.
/sads
It’s something, but it’s definitely not ideal to have this issue occur when a user opens an ad. It seems a very reasonable use case that someone would click the ad, then task switch back to the game. Users shouldn’t be punished in this way.
This issue is quite frustrating. Not sure what to try next… maybe something will come to me later. I’ll report back with findings if anything comes of it.