Well after seeing that the "help" here did not work. I decided to look for it myself and I found it for my case.

I take a long history of trial and error that does not count, I'll just say the solution.

If you have started the session in opera with the synchronization activated, reset the synchronization.

Here: https://auth.opera.com/account/login/success

Uncheck the configuration synchronization option, in the configuration panel in the Browser section. Settings / Browser / Advanced configuration.

Reset the factory opera. Settings / Browser / Reset Opera.

Re-login with your opera account and synchronize again.

Enjoy flash xD

@hecatombe @robzs

@leocg And now what do I do? I stop using opera?

@Ceedee I'll try to explain myself better.

Download the flash again and install it.
https://i62.servimg.com/u/f62/19/86/13/54/operaf12.png

Here is proven that I have the latest version of both the opera and flash.
https://i62.servimg.com/u/f62/19/86/13/54/versio10.png

Here you can see that I have it activated and in the list of exceptions you can see: www.atiads.com, https://www.atiads.com and atiads.com. All three as allowed.
https://i62.servimg.com/u/f62/19/86/13/54/operaf11.png

When I enter the site there is a tab where I should show you 4 graphics, which are not seen:
https://i62.servimg.com/u/f62/19/86/13/54/atiads10.png
link: http://www.atiads.com/?view=account&page=statistics (You need to be registered to see the tab)

If I right click on the "graphics" it tells me to enable flash player, I give it to enable, nothing happens. I reload the tab and do this sequence as many times as I want and nothing happens.

I do not know what other information you would like it to give.

@leocg Now we are 2 with the same problem. Could you help us?

@leocg said in Opera 52: adobe flash adobe flash does not work anywhere:

@fclstudio Try removing the http part of the address.

I did it recently, it still does not work.

Anything else I can do?

@leocg said in Opera 52: adobe flash adobe flash does not work anywhere:

@fclstudio Adding helpx.adobe.com to the list of exceptions helped here.

I leave a snapshot of everything I have in the list of exceptions, as you can see are the pages of adobe and the sites that I visit that the Adobe flash player does not work either.
https://i62.servimg.com/u/f62/19/86/13/54/operaf10.png

@leocg said in Opera 52: adobe flash adobe flash does not work anywhere:

@fclstudio And some example pages where the problem happens would be...?

I leave the evidence of adobe that does not show me what should:
https://get.adobe.com/en/flashplayer/about/
https://helpx.adobe.com/la/flash-player.html (in this it directly says that it is not installed: /)

And sites that I use:
http://www.aticlix.com/?view=account&page=statistics

Only that it requires registration to see that tab, the rest of the pages are of that type and with those characteristics.

@leocg said in Opera 52: adobe flash adobe flash does not work anywhere:

@fclstudio Try adding the site as an exception.

Thank you for the response, but as it is written I have already done it and that same message comes out.

Hello how are you?
Before the update I could use adobe using the opera tool: // site-engagement. Now in the new version I am not allowed anymore, I get the following picture:

https://i62.servimg.com/u/f62/19/86/13/54/opera510.png

Now when I click left nothing happens, when I right click I get the option to enable the adobe but nothing does either. I have the site added to the list of allowed within the flash settings. Also I have the latest version of the flash (just download it again).

Does anyone know how to fix it?