Breaks widgets

WordPress is in desperate need of better organization tools, such as folders and subfolders for media files. Seems to utterly basic… So I installed this plugin into a new website under development. As far as creating folders and organizing files, it works as advertised. But it broke so much stuff in the process.
For instance in the Visual Editor widget, the File Manager buttons appeared but all of the text editing buttons disappeared and the editor became unusable. It somehow also interfered with unrelated widgets on the same page like the Button Widget. I disabled the Media File Manager Advanced plugin and all functions returned to the widgets.
For reference, the widgets were being used inside the SiteOrigin Page Builder. The WordPress version is 4.1.1 and I am using the WeaverX theme.

I gave it two stars because I’m using it on another website with no problems.