Video exits unexpectedly

## Prerequisites
- [x] I have searched open and closed issues for duplicates.

## Describe the bug
Playing one video after the another kills the app.

### To Reproduce
Steps to reproduce the behavior:
1. Play a video.
2a. Click on Episodes, choose a video, it dies.
2b. Click on Library, choose a video, it dies.
2c. Watch the whole video, return to library, choose a video, it dies.

### Expected behavior
It shouldn't die.

## Platform Information

- [ ] I'm using the latest version from git that I've manually compiled
- [x] I'm using the latest released stable version

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Reproduce the failure by playing a video and then selecting another from Episodes or Library, including after a video finishes. Trace the playback transition and confirm the app remains open when starting each subsequent video; the issue does not name files or tests to begin with.

Written by the indexing model from the issue text.