Overtime Effect Glitch

What you see here is that I failed to defeat "Krugs." The fight against Krugs went into overtime. The game sped up and an effect appeared on the border of the screen. Normally, that effect only lasts until the end of the round and goes away, but for some reason it did not disappear when losing to Krugs.

To remake this scenario, you can use the team composition that you see at the end of the video. It's a berserker team, but they don't do enough damage to kill the Krugs. I also made the poor choice of leaving them in the bottom left corner.