WebM Video in Storyline

We shipped a recent Storyline 360 update that added support for WebM video, but also introduced a behind-the-scenes change: we started making copies of MP4 videos in the WebM format. The goal was to make video playback inside the app more reliable. MP4 support has always been a bit of a tightrope for us because the format sits on top of a tangle of proprietary codecs and licensing constraints. That makes it tough to keep Storyline’s internal playback components modern and stable. WebM, on the other hand, is open, predictable, and much easier for us to support.

Once this change landed in real projects, though, the side effects became obvious: it's confusing and can lead to projects carrying both formats when you never asked for that.

So here’s what we’re doing: we've rolled back the automatic conversion in an update that was released this morning. You can still import WebM videos if you want them, we just won’t force the format switch on your behalf.

If you ran into this and spoke up, thank you. That feedback helped us adjust fast and rethink our approach.