Sorry to hear you are having issues. Please try this. Go to Fences configuration windows.
1) Color & Appearance -> All Fences -> Click "Reset to default". That should make all your fences not transparent.
if it still not reappear.
2) Disable quick hide.
if it still not reappear
3) Disable Desktop pages.
Try those and tell us if you still need our help.
Stardock Community Assistant.