Yes! They are the worst tests for false positives I used them for the first 3 months of ttc from one box I got a dye stealer test was so positive and I was so excited and it turned out to be negative tried again with a different box and they all showed false positives, I just get the 99p 6 days early tests from home bargins now they never show any indent lines or false positives x
I had a friend who had this issue and faints showed up repeatedly between two brands, idk for sure but I suspect it’s chemicals yes. Purely bc I’ve never had an “indent” before myself. Stark white even after the ten mins. With any brand or batch.