canopyinthecity bhanu29 — you're both right, and my earlier answer was the wrong cause. I've reproduced it on my own account and it's now documented.
It isn't the mixed-attempt but instead sillier. When you're in the Incorrect view and you click the number in the Attempts column to see all your tries at a question, the system then switch the Result filter back to "All". That's exactly what both of your screenshots show and the second one is the moment you drilled in, the first one is after you closed the chip and it disabled the filter.
I am working on getting this addressed in the next 1-3 days. Until the release comes out, the workaround is: after you've looked at a question's attempts, re-pick "Incorrect" from the funnel next to Result.
canopyinthecity — your other suggestion (filters for 1st Attempt Mistakes, Last Attempt Mistakes, Untagged, No Mistake) is the real answer to the multi-attempt situation, and it's now written up on our side.
Thank you for the screenshots by the way - that made the process much easier!