Ultra Keyer not working properly with HDR

Well it turns out resetting the preferences does solve the problem, with a slight caveat. I know you had already asked me to reset them and I apologize for not doing it sooner but it was something I was really dreading doing. As a functioning TV station with many edit suites we have a lot of preferences we are using. We have custom Bella keyboards, 4k HDR workflow, Log video, multichannel audio, Blackmagic video I/O hardware, etc. so just wiping everything out was not desireable. However it does seem to be the only solution. I did it on 2 different machines and now they are working properly. The strange part is that it is not only the preferences, there is something carried over inside the project file that is a problem also. After resetting the preferences i loaded in my keytest project i made last week and it is still not working. I created a new sequence and did the key again from scratch and it works. When i look at the sequence that i loaded in that doesnt work i can disable and enable the key, and nothing changes. I can change the preset from relaxed to aggressive and back and nothing changes. But then if i re-sample the key color then that instantly fixes the problem. So there is something held over in the preferences and also in old project files that is causing it to not key properly.

Thank you for your time and we will go ahead and wipe the preferences in all of our edit suites. (fyi: I just built these machines from scratch a few months ago so the preferences are not from a very old version)