Ok so out of the blue my system 47 screen saver started working on OS X 10.14.6 which is Mojave. Now I have loved this screen save for the longest time and kept the latest install, installed, hoping it would some day magically work again and it bloody well did. On all 3 screens at the same time with sound effects and everything!
So I decided to install it on another machine and no dice. No matter what I did installing legacy java and so one.
So I did some digging on the saver and found it was flash based and in the Flash forums I heard talk that the screensaver wrapper sometimes stops working depending on the release version.
As such I found the magic Flash version to make it work on the Mac. Let me know and i can see if i can get it working on Windows. It might be as simple as installing the Magic version.
The magic version of flash you need is version 32.0.0.223. You will need to download an archive of it from Adobe and since the URL might change – I am providing you with the google search I did which found the install of this version.n
Next step is to find the most recent version 2.3 – I honestly dont know where I got 2.3 as it seems only 2.21 s on the developers site at https://www.mewho.com/system47/download1.htm.