@KookLord Yeah, i use the Dark theme. I change to the light theme and now work fine, have hours with music tab and works fine, with Dark theme after few minutes the opera crash. For me, the light theme resolve the issue. I wish that Opera resolves the Dark theme issue soon, really like the Dark theme.

At moment the best option is the downgrade, because the new update 63.0.3368.88 still have the crash issue.

The Opera 63.0.3368.75 crash to me when i have open a tab with music, with page like music.youtube or paly.spotify, it generate the crash some few minutes after I play on the music.