Device: PC, Mac, Mobile

OS: Windows 10, macOS Catalina 10.15.4, Android 9 (Galaxy S8)

WTR (way to reproduce an issue):

- Unknown.

Description:

Every time I'm doing Sewers of Arnoc Stage 7, Round 3 of 3, the "boss" gets to go first or second, and every time he attackes the first time, the game kinda pauses for a second while no one, one or more champions on my team is stunned. This happens in both Multi-Battle and when starting a battle manually. I recorded this to show you easily but after the recording, I've changed my team a bit. Still happens though.

: Recording of this "in the middle of battle" -pause :

Anyone knows a way to fix this?

: From description of youtube video :

I really can't figure out why this is happening. Every time I'm on Stage 7 at Sewers of Arnoc and gets to Round 3 of 3, the boss will use a stun and the round takes a small pause before continuing. This happens in both Multi-Battle and when I manually starts the battle.
Things I've tried out: 

- Re-installing Raid: Shadow Legends 
- Uninstalling Raid: Shadow Legends and Plarium Play and removed all files associated with Plarium Play and SML. 
- Same thing happens on mobile. (same account) 
- Same thing happens on another computer (same account)