Same color bar Vimeo thumbnail image just started happening for us. Tried removing and recreating block and removing "s" from https: Neither worked. One thing I noted is that if I "embed" a Vimeo video that previously had a thumbnail that worked, it still works. We are creating a clickable image instead as a workaround. We are editing in a "Play" button on the image so it looks like what users are used to. Doing this using the CC image editor, adding an uploaded custom sticker. It would be nice if either CC could store the uploaded custom sticker, or add a Sticker Shape that looked like the Play Arrow in a Circle.
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