I have seen this a couple of times now - wondering if its a bug to fix rather than a one-off.
In Sharkbook I have seen examples where MiewID is matching left flanks to right flanks - see this example (check out the 12th result):
I know this happened occasionally in spot mapping, but haven’t heard any feedback about that from MiewID until now. I’ll talk to the machine learning team and let you know what I find out.
I think it is the spot mapper predicting the viewpoint wrong on the encounter for #12, potentially due to the user not rotating the image correctly or just bad trigonometry match predicting the viewpoint. The encounter owner can fix it by removing the annotation and redrawing it with the correct viewpoint.