[Reported] Kicked for "inactivity" during long battle

Platform, device and operation system
Google Pixel 3A

What were you expecting to happen, and what actually happened
I was playing a long dungeon at Difficulty X, and midway through I was kicked for inactivity. I was not AFK, I had just matched some Gems only a few seconds earlier.

How often does this happen? When did it begin happening?
It seems to happen if you take a while to complete a battle (which is common if the battle is higher difficulty). I was in the battle for about 30 minutes or so.

Steps to make it happen again

  • Enter a high level dungeon.
  • Take a while to complete the dungeon (due to massive amounts of health)
  • Get forcibly kicked when you’re almost done, forcing you to restart.
  • User is not returned to the battle they were in.

Cross-posting this here - same experience