Downloaded audio not working on ios

I’m testing my app on Test Flight and on Simulator. It won’t play the audio from the online storage. It works on my Android version and the url is the same.
I rebuilt the app with Gen 1 packaged in the app and that plays on the simulator.
The same has happened on 2 other testers’ phones.
Has anyone else had this problem? Any suggestions?

I found the issue. I believe you can use URL without a slash on the end to work around it. I will fix this for the next release.