Hello,
I have experience this issue for quite some time and have finally decided to post a thread regarding this issue.
When I try to rename the default capture profile my TeamSpeak 3 client hangs and does not respond/recover.
This has been happening on all versions of TeamSpeak 3 that I have used.
Operating System: Windows 10 (x64) (Version: 1809 | OS Build: 17763.253)
TeamSpeak 3 Client: (Architecture: 64bit | Version: 3.2.3)