If Adobe Express says the file is "unsupported," ensure it is encoded in H.264 rather than H.265 (High Efficiency) by checking your camera's "Advanced" settings. If so, please describe what happens in the clip. Video file not supported? - Adobe Community
It could be a quick brand asset or promotional clip created using Adobe’s mobile or web-based editing tools. Troubleshooting (If Required) VID-20230119-WA0186_AdobeExpress.mp4
If you are experiencing issues with this file, Adobe Support and Community forums recommend: If Adobe Express says the file is "unsupported,"
Given the WhatsApp origin, it may be a personal clip shared between friends or family that was later polished for better viewing. VID-20230119-WA0186_AdobeExpress.mp4