CorelDRAW Graphics Suite X6 :: Gradient Messed Up On Mirrored Side

what I do is design one half of my design first.  When I like what I have I duplicate that part of the design and then mirror it horizontally. I then save the file. Close out of the program. Turn it back on the next day, and some of my gradients are now messed up on the side that was mirrored. 

As you can see the left snippet is how it should look, the right mirrored snippet's gradients should match but the don't.  Some of the gradient. (not all of them though). It's really bizarre. It doesn't happen often, the only times I can remember it happening is when working on really large complex designs. Oh also, it is effecting gradient fills and transparency linear gradients.