Blinking new windows when launching with a firefox window opened

[Siriusmart]

Symptom When launching new app along side a firefox window, the new window sometimes blink a few times before launching

How to Reproduce

1. Open a Firefox window
2. Launch another app in the same virtual desktop
3. The new window blinks a few times before it stops blinking

Expected behavior It's supposed to open without blinking

Environment

• Distro: Archlinux
• KWin version: 5.25.0
• Krohnkite version: 0.8.2
• List of KWin scripts in use: Krohnkite

Notes

• The blinking only happens when there is a firefox window opened, not with other windows (in the attatched video i also showed opening new windows with konsole next to it and there is no blinking)
• The blinking is a lot faster than what's shown in the video because the video has low frame rate
• This seem to be a KDE 5.25.0 issue video is too large to be attatched https://youtu.be/C02yAFSvKd4