WebFM Breaks with "Shibboleth Authentication" Module

I installed WebFM, created a webfm root directory, and gave it the proper permissions. Everything worked nicely: I could upload files, make directories, traverse the file system, etc.

Then, I installed the "Shibboleth Authentication" module, and WebFM has ceased to work. When I navigate to the Web File Manager page, the directory structure appears empty (even though, looking on the file system, this is not the case). Trying to upload a file results in the error "Invalid Upload Path." The buttons, normally found in the upper right-hand side of the screen, to create folders, or upload folders/files to db no longer exist.

Clicking on debug gives me:

current directory undefined
trees fetch: { 'status':0 'data':' { "status": true, "tree": [ { "/webfm": { "HR": "", "Academic Affairs": "", "Faculty Comp": "", "Faculty Affairs": "", "BAD": "", "Admin": "", "Repro Med": "", "MDTV": "", "Faculty Council": "", "MSP": "", "Space": "", "HSSPPO": "", "VC News": "" } } ], "current": "/webfm", "admin": true, "err": "" }' }

But I checked: the WebFM settings still refer to the same directory, and it still exists on the filesystem, with proper permissions. I've tried changing directories, but no dice there.

Any thoughts? Any help would be much appreciated.

Thanks,

Darin