Hi Marcos,
Thanks for this. I updated to v16.2.11.0 prerelease and it did not solve the issue. Turning off Banking & Payment Protection solves the issue after restarting both my browser and TeamSpeak. While doing this I noticed that the "Secure all browsers" is enabled and disabled when turning B&PP on and off so I tested with just the secure all browsers on and off (restarting programs after its toggled) and that seems to be the problem.
NOTE: I can copy using right click and clicking copy, but not using keyboard shortcuts like CTRL+C. I also tested to make sure it was not a browser protection issue by attempting to paste into a notepad file and that does not work either whilst "Secure all browsers" is toggled on.
EDIT: Scratch that above - Let me try system reboots after turning on and off the protection. That information is incorrect.
EDIT 2: After testing again, it seems if I disable B&PP permanently, it resolves the issue.