For a rare change, "No". I just tested one in my club and the video worked perfectly fine. My only complaint lately is how long it takes a page to open here. It can take up to 2 分钟 for a page to fully load and let me do anything. At times I'll even have to refresh it several times before it works. Most of the time I get messages saying it's to do with long running script. :(
You're welcome! Out of curiosity, have 你 tried checking any 视频 on YouTube to see if those work? If they do, then it's probably like zanhar1 said. If not, perhaps you're missing some kind of update.