ALL versions of Adobe Flash work fine in WGT.
The two Browsers that are having problems with Adobe Flash are Firefox & Chrome. If you are using Chrome the Culprit is Their Addition of Shockwave Versions containing a new Pepper Flash Player. That has to be Disabled and keeps having to be disabled with each update. It can be found by typing in .....about:plugins.... in your http://www. section. Turn that off plus any additional Adobe Flash versions except the latest one.
Suggestion use a different browser for now. The ones people are using with succes right now are Maxthon3, Comodo Dragon, Rockmelt & IE9 . There may be others but these are the main ones I am aware of and have tried on my system. Currently I am have great success with Maxthon3 on my system.