You can try enrolling your masked face as a second face. I had some success with that, but it would still miss enough to be annoying, but I've heard it works well for some people.
Just curiosity: does it start recognizing with the mask after some time?
Anecdotally, after some of the recent updates I've noticed like a 10% match instead of 0%. It was really nice when they pushed an update to recognize a mask and fail quickly to a pin since that's what happens most often when shopping.