Same here. Purchased Fences as an alternative to the ageing Object Dock.
Without Fences always being on top the whole thing is pretty useless to me.
At this stage Object Dock in my view is still way superior to Fences. It works for me in Windows 10 without any problems.
Fences looked like a nice alternative. I should have used the trial version first to see what it did. However with the 25% discount I jumped in. Silly me.
I guess Object Dock may just have to keep running for a while yet until we can get an option to allow Fences Always on Top.