YouTube videos missing quality options on this browser

Try this video.  https://www.youtube.com/watch?v=aWMUyAG06ow

 

Yeah, a link to the video that has that issue would be handy.

This issue occurs very randomly .

Here is example video https://www.youtube.com/watch?v=mBNS2XhIajU.

As you can see on 2nd screen quality options are missing on Mx 4.9 (clean install, without Passport or extensions...)
The first screen is taken from Opera 40  ♥ (all available options are there).
Tried with different custom UA's - no go.
After several Maxthon's restarts all quality options show up as should it be.

Confirmed, but why only on random videos?  If it works on one with Maxthon 4.9.3.1000 why doesn't it work on all of them?  Not logical.

10 minutes ago, No.1MaxthonFan said:

Confirmed, but why only on random videos?  If it works on one with Maxthon 4.9.3.1000 why doesn't it work on all of them?  Not logical.

Very good question . Perhaps only Google knows that .

It could be caused by outdated Blink core (?!)

Edit: Nope. Works also fine with IE11. So it has to be something with Maxthon

52 minutes ago, magg said:

Here is example video https://www.youtube.com/watch?v=mBNS2XhIajU.

360/720p using HTML5
All options using Flash

So possibly not detecting properly what MX can support?

42 minutes ago, magg said:

it could be caused by outdated Blink core (?!)

Edit: Nope. Works also fine with IE11. So it has to be something with Maxthon

And these are related how? Assuming it is Blink related, what happens in IE has no relevance. 

1 hour ago, magg said:

After several Maxthon's restarts all quality options show up as should it be.

That is odd though. Says that it does work, just that the planets need to align for it to work properly?

Was thinking that possibly might be related to a HTML5 option that MX doesn't support, but the above throws that out the window as it technically shouldn't work at all if that was the case.

14 hours ago, 7twenty said:

 

And these are related how? Assuming it is Blink related, what happens in IE has no relevance. 

 

It's clearly shows this problem is related to Maxthon only.

All these quality options are available in all other browsers - except Mx.

Tried with Opera 40, Slimjet 10, Chromium 53 - so all of them with up to date Blink core.

Works just fine also with FF 47, Edge, IE 11 and Mx in Retro Mode - so browsers which use different engines like Gecko, Trident also don't have such problems...

So it could be related to Blink 39 core or option that Mx doesn't support - as you pointed in your post.

Here https://support.google.com/youtube/answer/6322658?p=missing_quality&rd=1 Google doesn't explain which exactly Chrome (Blink) version is needed to get all quality options.

 

EDIT: another example https://www.youtube.com/watch?v=6CYOCOXQ-3g

or

https://www.youtube.com/watch?v=TQwkuOYLEEg

Today (28.06) all YT videos plays with Mx (clean portable) without all quality settings (only 360p and 720 are available)!

Browser restart does nothing  this time.

Of course with all other browsers this issue doesn't occurs.

happen on my computer, too.

Those information already has been transferred to test team. If it's confirmed as a bug, I will give feedback here.

Thanks for your feedback and others confirm.

ok i changed Cookies files from other pc and every thing back to normal .