'Unfortunately, WFC Settings has stopped' error when entering WI-Fi Calling

[SS338]

Hey fellas -
I have a Sprint Galaxy S7 Edge that's throwing this error:

'Unfortunately, WFC Settings has stopped.'

everytime I enter settings Wi-Fi Calling. I also had the same error on my Note 7 before I had to turn in the phone.
On my S7E, it had been working fine as of just yesterday.
Any ideas?

 

[SS338]

So Sprint pushed out a 'security' update this morning and even after installing it and rebooting, I still have this error.
If anyone has any ideas, they'd be much appreciated.

 

[papabear4jc]

I am having the same issue. Only difference is I am getting it after I did a factory reset because I kept getting "Unfortunately com.android.phone has stopped" that repeatedly popped up making my phone unusable.