I'm have a Jira project that I've renamed, and changed the code for as well (from EC to CL for this example).
Now whenever I add an Epic, it shows in the Epic panel, but disappears after the first refresh.


Similar thing with Sprints, where even though I have sprints set up, they do not show under the project's sprints when assigning a sprint to an item.

Below you can see that after turning off "Only show sprints in this project" the relevant sprints do show up (202504-2 and 202504-3)

This issue isn't reproducing in a different project who I haven't renamed.
Please help