Has anyone had issues with phone universal flip case closing tabs (magnet) not working after pressing? Didn't think it would be an issue but after pressing 4 and letting them cool, I went to bag them up and found the tab wouldn't stay in place, seemed to have lost its magnetic stick. I called the supplier who said cover it with old mouse pad or something, i happened to have thin silicone sheet which I cut a couple of small pieces off and covered the tab, seems to have worked. Just sharing in case someone else has the same issue, maybe it's common knowledge, not a problem I anticipated.