Why doesn’t my iPhone video play or edit correctly in Microsoft Edge?

iPhones record video in HEVC (H.265) by default.
When a video is uploaded to Knowby, it is stored exactly as uploaded.
Edge’s support for H.265 depends on Windows codecs, hardware, and system configuration.
If Edge cannot decode the video, it will not load in the editor.

This is a browser / operating system limitation.

Use Google Chrome (recommended — works reliably)
Download Chrome: https://www.google.com/chrome
Record or export videos as H.264 on iPhone
Settings → Camera → Formats → Most Compatible
Link to knowby: https://knowby.show/f4a88fdc-cf64-4d8d-9554-dd4e26d7ecee
Install the HEVC codec from the Microsoft Store (may work, not guaranteed)
Get from Microsoft Store: https://apps.microsoft.com/detail/9nmzlz57r3t7

Videos recorded on iPhones are usually saved in HEVC (H.265) format. Microsoft Edge on Windows does not reliably support H.265 in the browser, which can prevent the video from loading or playing in the Knowby editor.