I've installed the plugin to MU and single site. With single site install the Facebook app configuration completes but..
1. doesn't autopost (all the settings are there)
With multisite install I use the same Divi Theme with some typical plugins like WPML (disabled) but the Ultimate Facebook Installation halts to the
Ultimate Facebook settings/Permission&Tokens
I've spent at least 3 hours reading your forum and tested the obvious so my questions are:
a) are the known incompatibilities in my setup
b) should I grant you access to Facebook app threw Roles if I missed something but similar setup works partly on my single site
The single install gave one alert included as an image