Help please

I bought this test not noticing it was a blue dye as I know they are horrible. Only issue is when I used it, I looked at it for maybe 4 minutes but got frustrated that the test site was completely light blue. I threw the test in the drawer. About an hour later I saw the faint line. I’ve looked up faint blue evap lines as that’s what I assume this is and all of them appear to be thinner and darker on one side or blotchy. I don’t notice that with mine. Anyone have experience with evap lines on blue dye tests? I will be retesting with a pink dye but not for a couple more days. I just don’t know what to think -_-