[Known Issue] Trembling encounters in event

Platform, device version and operating system:
Windows x64

Screenshot or image:

What you were expecting to happen, and what actually happened:
Upper three encounters in this event always trembling, trying to push each other. It expected to be fixed long ago, when this type of events was introduced - but it’s still here.

How often does this happen? When did it begin happening?
Every time when this screen opened. “Fix”, it seems, slowing and at last freeze them in 15-20 seconds - only to them start it again after leaving this screen and return. So it not fix anything (usually I simply never stay on this screen more than 3-4 secs needed to estimate the picture).

Steps to make it happen again

  1. Enter Event battle screen.
  2. Witness bouncing towers (or something else bouncing, if it’s not the current event).

This was “fixed” multiple times. Now just “known.”