Hey there SCPounders,
We see that you are having some difficulties with the Mirror Front Camera settings on your iPad Pro. We would love to assist you with resolving this.
First, try force closing the camera app and restarting your iPad Pro:
If the standard restart does not resolve issue, try backing up and then resetting all the settings on the iPad Pro. Here's How to back up your iPhone, iPad, and iPod touch. If you need assistance with resetting the settings on the iPad: Return iPad settings to their defaults
Be sure to review the section titled "Reset All Settings" to verify the settings that are affected with completing the reset.
Hope this helps!
Take care.