Hello, I have a problem speaking teamspeak. When I have the speaking button pressed, it suddenly mutes all others who are talking at the same time, it is very annoying and I would ask for help in solving the problem
None of this is a bug.
You have have Echo reduction active (Tools --> Options --> Capture) and this is why people get lowered for you.
There is no function to mute people when you talk.
Option 2 is that you are using priority speaker and this reduces the volume for anyone without that priority speaker.