I made several name recordings using Chrome, Firefox and Edge. The one in Edge seemed to have "disappeared" after saving.
I clicked on roster in the course, selected list view and saw the recordings for Chrome and Firefox. The recordings played as expected.
I checked the server logs (because I saw console errors and a stack trace earlier in Profile) and saw several errors. I assume they are for the students in the course that do not have a recording, but they are repeated.
02-Jun-2019 21:29:16.853 ERROR [http-nio-20213-exec-48] org.sakaiproject.profile2.logic.SakaiProxyImpl.getResource SakaiProxy.getResource() failed for resourceId: /private/namePronunciation/161fc7f0-c122-4fae-bb93-d3b47907e701.ogg : class org.sakaiproject.exception.IdUnusedException : null