Garageband iOS lost file


So, I was attempting to record a podcast using Garageband on iOS (beta 14.0, 18A5342e). Got through the recording, appeared as the file was saved. However, as it was getting ready to upload to iCloud, we had a power failure from Tropical Storm Isaias.

Cut to . . . 6 days later, and power restored. Went to Garageband, and there is the file. States that it is 642.9 MB. However, when I go to listen to it, it is only the last 6 seconds or so of the recording.

Any thoughts on how to recover this? I’m pretty sure that 642.9 MB should be more than 6 seconds of recording, despite how resource hungry Garageband is.

Thank you in advance.