I have been having an issue with the Thrust Curve app on my iPhone for the past few months. I will add a rocket and it won’t save the rocket. Sometimes I will make changes to the rocket profile and it won’t save. Recently I have made a change and it saved for a day or two then reverted back to the weights and finish profile from before the change was made. Do I have a setting set wrong? Has anyone else had this issue? What did you do to fix it if you did?