Video Codec saves, and applies, however, does not update Config File, and reverts back the way it was before.

I have spent quite a bit of time trying to figure out the issue I was having regarding Video calling.  I concluded that the FreePbx Gui/ General Sip Settings will not allow me to alter the Video Codecs.  When I select the differnent Codec, it checks just fine, and submits fine.  But when the apply button is hit, it doesnt seem to be updating the config file.  It appears from the gui all is well, but when I navigate from the Sip Settings, to another page, and back to Sip Settings, I see that the box I checked is no longer checked. I manually edited the file, but Freepbx overrites with whatever is in the gui.