I am still on Yosemite 10.10.5. Everything was working fine until added that update just a few days ago. The Apple Tech, who I called for a Safari Plug-in Failure strongly suggest I do the update to Safari as it will fit the problem. It did not fix the Safari Plug-in problem when playing video, but did create this problem with RDC....which I need desperately.
Should anyone knows what I might do, it would certainly be appreciated.
Thank you!
Jim