Same issue here! I tried going to "remote work" mode before starting screen share but same issue and it keeps bringing me back to the home page.
For some reason I had a different error ONCE, it asked to enter the 8 digits password showed on the screen in my laptop... but the laptop didn't trigger a password entry so I was still blocked 🤡
Anyway the only way I found was to turn the TV on and off and try again and again until it randomly works without having to accept on the TV