I have a presentation for a 4K1142 that is running a single HTML5 page, displaying a few lines of text or a single image. The presentation is set to 'Portrait - Left is bottom', but sometimes after a refresh, the page will load in landscape orientation. The presentation is set to refresh every 480s.
I was able to get around this using a User Stylesheet to apply a rotation to the page, but really shouldn't need to. Is this a bug or something anyone else has experienced?