I was referred by an external recruiter.

An internal recruiter then emailed me to schedule a phone call. The recruiter asked about my background and interests, and said we'd be proceeding to a technical interview.

Another internal recruiter scheduled me for an interview with an engineer.

On the day of the interview, I had an unexpected delay and was not able to get there in time. I emailed the internal recruiters 15 minutes after the start of the interview, apologizing and asking to reschedule. They responded with a link to their scheduling software that afternoon.

The next morning, the link didn't work. I emailed again; there was no response. I emailed my external recruiter. She heard back two workdays later (Friday-Tuesday) that "they aren't going to reschedule. Seems they were upset you didn't show up and then emailed after the interview had started instead of before, giving them some notice."

Seems pretty childish to me, but make your own judgment.

I wasn't asked any questions.