Vivaldi is really nice. I got tired of it crashed every few days or using ridiculous amounts of memory though. Perhaps they've fixed those things now.

Yeah, I just probably going back to a browser that's not broken, like Safari. Has anyone actually asked Opera support? Surely they have to know about this though, right? Just not a priority?

Ditto. This is super annoying. Did you find an answer? As far as I can tell the new MS Edge browser has the same type of UI but it does NOT have this problem. Magnet works just fine.

@sikomm Same issue here on latest OS, latest Opera. But most of the time I find the preview are just blank.

Both Desktop 1 and Desktop 3 are running Opera with open windows, all of which are blank.