FP not displaying correctly & locking up

I am having several problems with Flash Player in a few of the games I play on-line. This occurs in Firefox 51.01.1, Chrome, and Microsoft Edge. Operating system is Windows 10. I am also using the latest version of Flash Player ver 24.0.0.221.

The games I play in FaceBook that are affected are DoubleDown Casino slots games. When slots spin, individual slots don't display correctly until they stop spinning and even then there is a trace of a bad display at the top of each column.

The link to the above game is : DoubleDown Casino - Free Slots on Facebook | Facebook

One game I play I play in Pogo.com is "Undiscovered World". In the first 5 of 6 screens of each level, all seems to work mostly well. On the 6th screen where one must complete a puzzle, after dragging the first piece of the puzzle (doesn't matter which piece one chooses) the screen locks up and one cannot drag any of the rest of the pieces to the puzzle. Therefore, finishing the particular level is impossible.

The link to that game is: Undiscovered World | Pogo Hidden Object Games

I did follow the suggestions on the Flash Player Help page with no success.