There are 2 added Power Flags.
There are now the 3 normally required Power Flags.
I used the @Rene_Poschl 's test circuit because it was easy to use. In the circuit I was creating, instead of using Power Flags I used linear regulator circuits, similar to a LM7805 with the regulated pin set as Electrical Type “Output”. To remove the error in my circuit I had to duplicate the regulator and set it’s regulated pin to Electrical Type “Passive”.
I can not download the current version of KiCad until tomorrow so I can’t test to see if this still exists in V5.0.1 and I was unable to find anything when searching the bug tracker (but I seem to suck at searching it).