In one of our projects, there is an Epic that has suddenly appeared in a specific sprint on a Scrum board.
I've ruled out the following - so any insight would be greatly appreciated:
1. The other epics are not showing up and the filter has not changed. Epics are visible in the backlog with the Epic sidebar
2. The Epic that is showing up was created in May as an Epic, not converted from a story, so no sprint field was ever set. Our Epics do not have the sprint field - no value to delete
3. In a side by side comparison, it appears that the Epic is set up in the same way as the other Epics on the board