I wish it had been easier to spot in the earlier photos so you didn't have to take off your knee place once again. And I'm not going to force you, but if you want, you should take it off again and trim the edges of the knee plate so that they don't temper out, but end in a 90 degree angle, like this:
You do as you wish, and I'll hope that ATA some day makes a marking or something how to trim the knee plate properly. This is a very common thing with people's ATA knees.
Approved.