Im using 3 Monitors one Big 32 " in the middle and two little ones on the right and left.
i recently had the issue that the Teamspeak 5 Client window was completly Black without any UI Icons.
That happend after a Game resized itself, to the right window size it needs. After that Teamspeak was rearranged on the other Monitor.
Only a restart Fixed the Bug.
Made this Post as Bug report - Maybe others did face the issue as well.
This is how it looks like…
Using Windows 10 Pro Version 10.0.19042 Build 19042
Teamspeak Client Version: 5.0.0-beta67
Nvidia RTX 3060 with Nvidia Driver Version 188.8.131.52