Harmony genetic test inconclusive

Hey ladies so I did the harmony genetic testing to find out the gender of my baby!! It came back inconclusive , I am so frustrated has anyone else had an inconclusive?? My fetal fraction came back at 5% and all the genetic tests came back as normal low probability (I am so so so grateful). I am so confused and now have to wait until my 18 week scan to find out the gender 🥺🥺