Video cannot be played on nextcloud pi server

When i upload a mp4 video onto my nextcloud server and want to view it on my iphone it gives me an error “The video could not be loaded, either because the server or network failed or because the format is not supported”. Yet i can still download the video and view it on my device. Is their any way i can stream video on my iphone

maybe a double of this one? --> https://github.com/nextcloud/server/issues/5467

for more detailed help we need more details about your setting/environment/logs etc.