Every embedded YouTube video on TexAgs refuses to play for me giving me a message saying I have to sign-in to prove I am not a bot. When I click on the embedded video it doesn't do anything to allow me to sign into my YouTube account. Anyone know how to fix this?

I have the same issue which is why I use Vine instead. Check out that green V. You can use that to post Vine videos. Pretty slick service that's up and coming. Impressed with TA getting ahead of the curve on that one.

Try resetting your router and modem for your internet connection to try and get a new ip address from your isp. You might have gotten assigned one that got flagged for too many requests to a google service of some sort. I see it from time to time when one of my programs does a large data query to public services Google offers. It flags my ip for a day or so or until i go and reset it as i suggested above.

same issue for me

I was thinking the issue was iOS 18 but new update didn't resolve. Still can't launch YT from embedded posts.

I'm getting the same thing.