Sidecar Health Project Manager/Scrum Master interview questions

Applied directly to Sidecar and proceeded with a 30 minute HR call that went well. Then, communication got problematic. A zoom call with interviewer was set up, yet there was confusion related to PST with EST. Being flexible, I overlooked that mistake by them and agreed to the scheduled time. Interviewer did not show up so I emailed about possibly rescheduling and no response. Completely unprofessional and lack of courtesy. Stay away from this company since it appears their best talent has been leaving within the past year.