Glitched how? Like the images are distorted?
Or he image doesn't line up with the on-screen elements (like buttons)?
Either way, I'm pretty sure the answer is "because it's a clone".
If it's the second one, you can possibly edit the images to make them line up.
For example, YSMenu has a similar layout to the R4 file browser, but things are off by a few pixels. After playing around with it for a while I was able to make a 'template' that I can use to edit R4 skins to YSMenu skins.