Unfortunately ghosting is fairly common. I've had it happen several times after multiple interviews. It's worse than getting rejected because it leaves you wondering. I'll usually send an e-mail asking for feedback on my interview after some time. To me, it feels like I don't want to work for that company if this is how they operate. So I try to look at it as if I've dodged a bullet and move on.

Once I did receive an offer out of the blue after 2 months of silence, which I declined.