Has anyone had a FRER digital test stuck on the little clock symbol. I took the test this morning but was in a rush when I left for work so I just glanced at it and saw it was still on the little clock. So I thought I might not have given it enough time. It had just been around 3 or 4 minutes. I came home from work today and it still had the symbol. It never showed a question mark like the directions said it would if it was invalid. I know the test is invalid, but those are expensive. I hate that I spent money like that on an invalid test. Anyone else have issues with them?