Curebase Clinical Project Manager interview questions

I applied online and received an interview invite about a week later. As Curebase's mission truly aligned with my passion, I spent ample time preparing for the interview. However, nobody called in at my scheduled interview time and I was left hanging for 30 minutes. I reached out to Curebase about the possibility of a misunderstanding of time, as I was sure the time I called in was the same as the time listed in their email, but they never got back to me so I was unable to reschedule the interview and thus never got to interview with them. I would think it's common courtesy to let me know of their mistake at the very least, even if they decide not to reschedule the interview. Very disappointed in how the process was handled.

After submitting application online, initial interview scheduled with recruiter. After 1st round, a 2nd interview was scheduled with Director of Clinical Operations. A 3rd round involved another director and project manager. Lastly met with COO. Offer extended after meeting with COO. Scheduling was based around my availability using online tool to provide potential meeting times. All interviews took place using google meet.