I took a step outside my happy little world of Linux & Mac browsing to see if I could replicate this problem, on a (shudder) Windows 7 computer at my local library.
It was an educational experience, and I have two questions for all you regular windows users:
1. do all embedded streamable.co videos on the site have click-through adverts?
2. Do all embedded google drive videos show an "upgrade to Chrome" pop-up?
If both these providers are doing this all the tine, I'd seriously consider going back to YouTube for my embedded video streams: at least for the vids that the Copyright Gestapo don't force YT to block.
This has been a truly eye-opening experience: I've been living in my cozy little non-windows ad-block world for too long: I'd forgotten what it's like for youse guys out in the wild windows advert-choked world.
I've not done a deep dive into the problem YMG, but the ones I was having the challenge of getting the vid to load were the recent Pan's People vids:-
It’s Better to Have (and Don’t Need), Another Saturday Night, Machine Gun, HB Rovals Advert, and You’re the First, the Last, My Everything
Removing Adblocker resolved the issue.
The Legs & Co vids play fine for me without any need to remove Adblocker.