I've seen the leak three or four times more yesterday, while in Opera Beta or Dev. Apparently not related to the content of the page, but I might be wrong here. Before that I thought it had to do with Discourse, but it happened also on other pages, even with only "opera:sync-internals" open.
But it is definitely not related to Gmail.
Anyway, I don't care much anymore. In the meantime Opera exposed so many other technical problems and design problems that I moved on to Vivaldi. This thing is felt 50× better than Opera and might be a worthy candidate for my future default browser. (Well, currently it already is my default browser, but still on a trial level.)
Nevertheless many thanks for your replies and support efforts, @leocg
I have the same issue since version 51/52 it's really annoying to the point that I changed browser. But I prefer Opera so I hope it will be fixed since it's been month now.
I'm on MacOS 10.14.2.
@panosv said in No smooth scrolling in Opera?:
Thank you for posting that website; the scrolling issue can be reliably reproduced on that page. The problem is not solved, and still exists in Opera 56. I feel that on some sites that I was visiting, it may have improved slightly, but overall, scrolling is still jerky and unresponsive in Opera as of the latest version of O56. Please visit the posted site sapsalis.gr (Greek meme site or something) and attempt scrolling, pinching-to-zoom, and diagonal and horizontal scrolling using a touchpad on a Windows laptop to reliably reproduce the problem.
@speedylunar Try the steps in https://forums.opera.com/topic/23068/instructions-on-posting-about-problems-in-opera-for-computers
It doesn't seem to be happening here. Check also your video and monitor settings.
Just updated to Opera stable 54.0.2952.46 today. Did this after Ubuntu 16.04 upgraded to chromium-codecs-ffmpeg-ex 67.0.3396.62 and all videos seem to play well on Opera v54.
However one strange thing that remains is, on some sites videos will not play when using New Private Window. I get out of New Private Window and then those same videos now play fine. Go back into New Private Window and again those videos refuse to play, saying Flash needs to be enabled! Try to enable Flash but nothing happens. Any idea why this happens?