I am encountering a problem when trying to edit the start date of epics in the roadmap. When dragging the bar to change the start time (to an earlier or later date), it first displays the new start date but then jumps back to the original date after just a couple of seconds. I manager to edit it for some epics - and I do not see the same problem when editing the due date. Some of the epics are empty, while some contain user stories that are linked to sprint (with fixed start and due date according to the sprint).
Does anyone know what the problem could be?
