Not much that can be Done, you can't Force the gump to be the "Top" Gump, which is all Easyuo can see, once it open.
The Best thing to do is once you start the script, just minimize the Client. If you have your Mouse over an item to see its property, it can really glitch it out.
I could probably code in something to pixel scan to find the Gump again, but that would be REALLY annoying, Maybe Recording the Last known XY Coordinates for it and then Pixel Scanning, then a right click to close.
Only other option I can think of is a Kill all Open Gumps and Reset everything in the Script, but then you have to open the backpack, container, paperdoll, stat bar. Not too bad. Hmm...