Pickup machine icon question

Ok so if there is a 'P that’s the master, a ,P is a slave. So what does it mean if a track has both? Generally happens when that track is playing. What does it mean? Couldn’t find any info in the manual. Thanks!

buggy behaviour imho, i’ve seen this too
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Here is the picture I took of it.

Maybe if this is a bug that would explain this issue that I also had (at the same time last night), where using a foot controller would cause the icons to change but not actually record audio, while using the INAB button would correctly record audio. I took a video showing this.