A. Live Photos consist of a short video and a still image. If the still image is blurry, try editing the Live Photo on your iPhone to select a different key photo. Open the Live Photo in the Photos app, tap "Edit," and then choose a clearer frame as the key photo.

B. If the app does not support Live Photos properly, consider converting Live Photos to standard photos or videos before uploading them to the app. This can be done using the Photos app on your iPhone by selecting "Duplicate" and choosing "Duplicate as Still Photo."