FRER digital?

So I took a test on Friday FRER rapid results and got a faint positive. Tested again yesterday morning with FRER rapid results and FRER digital and both were positive. Tested again this morning (11dpo) and got a negative on the FRER digital. I also took a FRER regular test and got a positive (posted below)

Has anyone had trouble with the FRER digital? Anyone get a negative after a positive? I'm not sure if it matters but I got the negative after I dipped the test in pee that had been sitting out for a few hours. Help please!