Please respond I'm going crazy Why has the line disappeared?

Sara • My partner and I have been together for nearly 4 years. Have a 14month DD TTC #2 :)
Can anyone help I had a very faint positive on a clear blue plus and a pink dye but after an 2 hours ( I know I shouldn't look past the time frame but still) the line has completely disappeared on the clear blue but on the pink dye is still there I'm confused has this happend to anyone else? I think I'm 12dpo