Hmm, have you all sidebar enabled? This looks like some part of Opera thinks that sidebar is visible and does steal clicks from that area.

If you could make this 100% repeatable (starting from normally working situation), then it would be good idea to send Bug report to Opera team.

Maybe someone will experiment with sidebar, twitter etc? I personally have sidebar completely disabled in my Opera and I don't use twitter (or other such apps) either, thereby no help from me

@Merulox ... I'm successfully listening to music now on Last.fm, using the latest update of the Opera GX browser on a MacBook Pro (running OS 10.13.6 , High Sirerra)
Good luck!

I am having this same issue, please help!!!

Reset? Did it reformat your hard drive? If not, then they should still be there somewhere. If you recreated your user account then your logins and other encrypted data will be unreadable, but bookmarks and sessions should be fine.

well thank you for the help i needed

@leocg I have seen this symbol.

I think you can sync before doing a delete.

or run as admin
it works too

@diezi Muchas gracias por la ayuda y por guiarme.

@Ffwu See https://forums.opera.com/rules

Does sync.opera.com show that there's synced data?

....

@wenoay Sorry my suggestions did not help. If you are using VPN please turn it off -- it cannot hurt.

I did find a website which listed my suggestions as well as others ( with pictures ) so perhaps they might work: https://www.digitbin.com/fix-dns-probe-finished-no-internet

@Medi22 There is sorting option available for bookmark. Either you may choose your own sorting or you may sort by name. But there is no possibility to add new bookmarks at bottom