Glitch in the app

Hi is anyone else with a period from 17-21st sept experiencing a problem? I have my period logged correctly in my period calendar but for some reason when I click done and go back to the normal calendar glow has my period Dow. As being from20-24th sept meaning my green fertile days are all about 4 days out. My home page still has the correct day for my next due period and my period calendar has it right but the main day to day calendar doesn't seem to have calibrated with the info I've given. It worked fine when I was in my period it's just suddenly changed two days ago an moved all my period info logs to the wrong days too. Has anyone else got this problem?