accessibility friendly way to hit play for keyboard users?

I installed this ages ago and was just correcting old vids and cleaning up a bit. I notice it’s mostly friendly, but when you click and it pops up on the lightbox, the ‘keyboard only’ method doesn’t seem to let it actually play. Hit enter and nothing happens. I’m not sure if I might be missing a setting or not. I haven’t tested anything like this in quite awhile, and I know there have certainly been improvements since I last looked.

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