That is strange but likely not a TOO issue. TOO is is a passthrough to embed the video and doesn't actually host it. Like looking through a window.
I have too have seen this lately over the past few days while utilizing my cellphone when accessing and only on the TOO site, plus I am still getting errors logged within my browser console from time to time as well on my PC when I try to post something and it won't go through. There doesn't appear to be any rhyme or reason as to why either. I was able to duplicated the problem/issue a few times and I posted the one example of a particular word that prevented me to post successfully within the 'POST COMMENT BOX' thread.
Again, there doesn't appear to be a particular/specific word and/or typed character each time I have seen the issue rise by not allowing me to post something. It's happened to me at least a half a dozen times, starting just before hurricane 'IDA' hit, not saying it's the hurricane's fault, but as a timeframe of when it started.
Any chance of a failing hard drive on server and/or some kind of filter set on your systems and/or possibly a recent update to your system around that timeframe? I'm sure you can review whatever server logs to figure it out one way or the other, hopefully...
The next time it happens, I would be more than happy to email you my complete browser console report if by chance it will help in diagnosing the problem/issue. They are fairly in-depth and in length, those reports. It would be easier on me to email it, than trying to post them, but I can figure it out if I have to, to post it into a document and provide a link for you to get to it.
I do believe you have some kind of system problem/issue, and at this point, it appears to be the intermittent kind.
Hope you can figure it out before somethin more serious pokes it ugly head out on ya.