@leocg
Actually, there was a problem in browser cache, I had cleared the history and now it is working fine.

Thanks.

@burnout426 Appreciate you taking the time to help!

@trustissues Awesome! Glad you got it!

@leocg

Issue resolved by closing and reopening O-Thx.

Indeed, it works. Thanks a lot !

Sorry, I don't unsterstand what you say (I'm french).

@leocg hello, I followed the updates closely, it now works with the ver: Update
Your version is 110.0.5130.49
Thanks

@swk058 By the way, if you are going to post things like that, it's better do already go to another forum, because here is not place for them.

@leocg you're right. I didn't know i could pm him. I was talking with other member, as you can read? Why so agressive? I understand and agree with you. This is a bot. No person can be so rude/dumb. you see i answer and del post before - mr. mod?

@nitrogenoxide See https://forums.opera.com/topic/71790/compilation-twitter-x-on-sidebar-stopped-working/13

@leocg
Solved!
When looking at your screenshot I saw that the "+" button to add tabs did not appear, and that the bar with the login, configuration and Share buttons was at the bottom of my screen. That gave me the clue that it was a design issue. I went to Settings and Design, and there I saw that the Create tabs option was disabled.

Thank you!