Anecdotal, but I have two CP3's in my test setup with the same firmware. My Go App has access to both processors. I haven't seen these errors in my initial tests...
Unfortunately lately, the number of unexplained warnings, notices and errors in the logs is off-the-charts (thousands and sometimes millions). No one I have talked with can explain most/all of them. They're just a big fog that clouds and masks things that we might actually need to know...
Very frustrating...
And yes, I turn off all the EnableFeature and Hydrogen stuff...