Same as the title. I create a Milestone with specific start and end dates but as soon as I start the Milestone the start date field is cleared out. Adding the the start date back in now shows the Milestone as not started (the not started banner at the top and the start button on the right hand side).
Thank you for the post. When you start a milestone TestRail removes the start data as at that point the milestone has begun and the start date no longer needs to be displayed. When you enter the start date again at that point, TestRail assumes that the milestone has not been started, hence the behavior you are seeing.