Problem with Vimeo on multiple sites

Hi guys – having a bit of trouble with the player recently – on most sites – the videos will simply no longer play – https://gearlocker.nz/shop/thlr-cheek-rest Which means I have reverted (vimeo) to forcing iframe embedding – which works, but obviously breaks the pre-post-roll ads, and, it seems youtube videos won’t work either. I have tried clearing the caches, turning everything off, turning off any plugins that might affect it… I am running out of things to try!