Ok so ever since my phone was updated back in October 2018 the default phone app (A.K.A. Samsung Call) on my Samsung Galaxy S7 has been gimped...

Symptoms:
- Whenever I receive incoming call the app launches and receives the call normally.
- Cannot make any calls, the actual app with the "Phone" icon can be clicked on but doesn't launch, which includes the dialer.
- I cannot launch calls by using the Contacts App.
- I can actually successfully launch an outgoing call by going through my text Message app(which is still the default Samsung app) and by selecting a person's number through a message they sent I am able to use the drop down menu to launch a call.

Fix Attempts:
- Attempted uninstalling & reinstalling only the Samsung Call app
- Attempted to clear the cache and data for the Samsung Call app (for all 3 of them because 3 of them show up in my app list whenever Show System Apps option is checked)
- Attempted Factory Reset of the phone, both through the Settings/General Management/Reset menu and through the Android Bootloader/Bios

I'm at a loss as to what to try next, besides nuking the OS on the device and reinstalling it from ground zero. I've asked several other forums, hoping someone can drop some knowledge and save me! Save me!