I have a project X that has the share the same sprint with project Y.
We will call this sprint "A".
Every time I edit the sprint A it the name changes in both project X and Y
I checked all the board settings between the projects and they are not shared with each other.
I added a new sprint "B" in project X and sprint B doesn't show on project Y. I move all the issues in project X from the shared sprint A to sprint B and sprint B doesn't show up in Project Y. I deleted empty sprint "A" from project X and now sprint "B" magically shows up in project "Y".