"o" is not a function, in awb.min.js

[robrecord]

I get this error when adding a video background to my site. The video does not load, as a consequence.

TypeError: o is not a function. (In 'o(window)', 'o' is undefined)
in awb.min.js line 41

Do you have an idea how I can begin to troubleshoot this? I can confirm jQuery is being loaded, but can't confirm it is parsed before awb.

Here's the waterfall:

This is in Safari 14.0.3 (16610.4.3.1.7)
AWB 1.7.4
WordPress 5.7
No other plugins except Advanced Custom Fields Pro 5.7.12

EDIT I have narrowed this down to the theme. Closing for now.