Like the previous updates, 11.5.502.146 after its installed has broken half the websites we use. If we disable it, those websites work.
Also when I try and install a previous version, it will not let me, it states I need to use the most update to date version and wont let me continue. Only 11.3 etc seems to work without breaking websites.
Could you please let us know the websites that stop showing animations after you update Flash Player?
To install a previous version, you need to first uninstall the latest version. The following document has detailed information: http://helpx.adobe.com/flash-player/kb/uninstall-flash-player-windows.html
Then, get the previous version from the following page: http://helpx.adobe.com/flash-player/kb/archived-flash-player-versions.html
Two sites that I have problems loading are yahoo.com and cnn.com with the 11.5.502.146 extension loaded in my browsers.
The worst performance is seen in IE9 with this version of the flash plug-in. When I disable the add on in IE these sites load quickly and as expected. With the plug-in enabled simple sites like google.com load just find as well.
There is clearly something broken with release 11.5.502.146 of the flash plug-in.