If you see the FAQ it states:
We have temporarily disabled Messenger customer chat plugin on Safari 12 while we work to resolve issues.
Found a fix, you can enable the plugin through the plugin list in your plugin installed list.
I was trying to enable it through the apps directory list after searching for it.
So consider it a small bug, but a fix for sure!!
Yes I need to report this as well.
Wordpress new version 4.4 states where logos need to be displayed : No Logo Added!
