S6 Edge+ Stopped Wireless Fast Charging

[Jishie]

Up until today (since last fall) S6 Edge+ Wirelessly Fast Charged faithfully daily. Today, it no longer will. Troubleshooting, It is not the charging pad, USB cord or Fast Charging Block as we own 2 S6 Edge+ phones and the other phone charges perfectly. The phone in question seems to only Fast Charge while directly plugged into the USB cord, but I am questioning that too. The Fast Charging "words" no longer appear on the darkened main screen as before, just charging or charging paused. The phone does show "Fast Charging" when looking at the notification drop down box after turning on the screen, however the length of charging time listed till full charge is identical to the time if notification only shows "charging". I'm stumped!