I noticed that my site's logs had a lot of page not found errors for /sites/all/modules/contrib/imce_plupload/images/up_arrow.png and after a little digging, found that it was due to the styling on plupload_start to set the background. It seems to me like it would make the most sense to remove this line completely since there's the display:none, but if you prefer to keep it, please see the attached patch file for the fix to point it to the plupload's image directory.
Closed: won't fix
2.0
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