My video and audio work great on my iMac Pro, but when I try to view the project on my iPhone on rush app you cannot hear or see the audio and video
Is the image in the monitor just black? Can you make sure file syncing is turned on in your Create Cloud app, and you have wifi enabled on your iPhone or "Sync with cellular" is enabled from your preferences.
Also, make sure you give the project enough to sync. The blue ring should close. Tapping on the ring will give you a sync progress status.
Please let us know if these suggestions do not help.