Very disappointing and amazed that no-one has either addressed the issue or at least recognized it.

You would be amazed at the number of people that come here and have some weird issue that no one else has experienced or even seen anywhere else. It is very hard to track something down when you can't reproduce it.

'That no-one else has reported'?
There are about 10 people above with the same issue. I think there are other threads on here with similar issues as well. Is it not a coincidence that a number of people all of a sudden have the similar symptoms when previously everything was fine? Just because you can't reproduce it doesn't mean that there isn't a problem. I agree that makes it very hard to deal with, but please believe us.

Me too using V42 on Windows 7. Started happening a couple of weeks ago and happens when I have multiple tabs open on youtube.
Very disappointing and amazed that no-one has either addressed the issue or at least recognized it.
Have had to switch back to firefox.

Did an uninstall, saving data. Reinstalled - no change.
Did an uninstall, deleting data. Reinstalled - fine. Lots of options now.
Thanks.

Version 41.0.2353.46 - it says up-to-date.

I'm using Opera 41 - downloaded this morning.

I have just started using Opera after getting frustrated with Firefox running too slowly.
However, I am struggling to set up my security and privacy settings. I have googled it and also looked at the Help functions and they all say go to Settings -> Privacy & Security.
Settings has no sub-functions and just opens a new window (also accessible via Alt+p).
In this window, there is a Privacy & Security menu but all it allows me to change is:
Block Ads (tick box)
Security - Clear Browsing Data.
Surely there must be more? eg cookie usage, VPN, etc.
Where is the rest of it?