Question about FRER Indents

Valerie

Question about indents. If you can see an indent line on a First Response Early Response before you take a test, is the test faulty/invalid? I just bought some and noticed they all have indent lines. Does the indent line go away once you take it? I don’t want to take them and get my hopes up if the indent line remains there and would look like a faint line/bfp.