https://linear.app/comm/issue/ENG-10466/processing-failed-when-sending-video-on-ios
On physical devices with iOS 18 there are problems with reading uris in the form of `file://...`. On iPhone 15 Pro with iOS 18.3.2 transcoding the video fails with underlying exception:
```
Cannot Access URL Error Domain=AVFoundationErrorDomain Code=-11884 "Cannot Access URL" UserInfo={NSLocalizedFailureReason=The sandbox extension was not issued., NSLocalizedDescription=Cannot Access URL, NSUnderlyingError=0x3034e26d0 {Error Domain=NSOSStatusErrorDomain Code=-17507 "(null)"}}
```
My guess is that ios sandbox doesn't allow us to open `file://...` uris . This also explains why it was working on simulator (it has no sandbox).
Uris like `asset-library://...` that are returned from ImagePicker do work though.