On iOS15 beta, Use -requestImageForAsset: targetSize: contentMode: options: resultHandler, callback UIImage * result is nil, and PHImageErrorKey = "Error Domain=PHPhotosErrorDomain Code=-1 "(null)""
Use - requestImageForAsset: targetSize: contentMode: options: resultHandler on iOS15 beta
Could you show how you call (objc code ?)
requestImage(for:targetSize:contentMode:options:resultHandler:)
The method is asynchronous, so maybe you look at result before completion ? You can force it to be synchronous (at least for testing purpose).
Did you check permission keys in info.plist ?
h t t p s : / / github.com/react-native-cameraroll/react-native-cameraroll/issues/157