Reproducing video.js 7 + mux data error when closing player

[petetan]

This error is intermittent but happens the majority of the time I load the player. It appears that interacting with the player, mainly scrubbing forward triggers this.

My environment:

Browser: Version 86.0.4240.111 (Official Build) (x86_64)
OS: macOS Catalina 10.15.5

Steps to Reproduce:

1. Click the "Mount" button
2. Play the video
3. Click on the progress bar to scrub forward
4. Let the video continue to play from it's new position for a few seconds
5. Click the "Navigate to Page Two" button
6. Observe error in developer console

[mux] A monitor for `vjs_video_4513` has not been initialized. 
    at HotExportedHome (eval at ES6ProxyComponentFactory (http://localhost:8001/commons.js:1:1), <anonymous>:14:7)
    at PageRenderer (eval at ES6ProxyComponentFactory (http://localhost:8001/commons.js:1:1), <anonymous>:14:7)
    at PageQueryStore (eval at ES6ProxyComponentFactory (http://localhost:8001/commons.js:1:1), <anonymous>:14:7)
    at RouteHandler
    at div