Another "video format not supported" issue
Hi. I realize this issue has been raised in other posts, but I can't find anything that addresses my particular case. I'm working on what I think will eventually be a fairly large library of interactive videos, and I think we are going to host the videos themselves on our own domain, simply to ensure control over the content. (I did do a test run using YouTube, but the pop-ups when embedded videos are paused made it imptactical; that's the kind of issue we're aiming to avoid.)
So, OK, I upload the video to the website in mp4 and webm formats (https://educationalhub.org/tired.mp4 and https://educationalhub.org/tired.webm) and then start going through the steps on the h5p website (https://h5p.org/node/add/h5p-content). The video links are recognized as mp5 and webm respectively, but immediately I try to add interactive content I get the "video format not supported" message.
I know the h5p plug-in on the website is active and running, because everything worked fine with the YouTube/h5p embedded file (apart from the damned pop-ups!). So I'm wondering what's wrong here and what I should do to get to the next stage (i.e., adding interactive content).
EDIT: I also seem to be having a problem replying to comments here. I got a comment from BV52 asking me to open the browser console. I did so and sent a screenshot of errors. I can see from https://h5p.org/user/235335/comments that my reply to BV52 has been sent (three times!), but I can't see it on the actual comment page (https://h5p.org/comment/26582). I love the whole idea behind h5p, but I'm feeling a bit lost when it comes to the practicalities!