mahutchinson

Hi all I have a hikvision cam and a dvr which is linked to my mobile and my wife's mobile. She can playback recordings at anytime of the day but mine only allows playback until around 11am to 2pm on any given day. The rest of the day shows nothing recorded. I am using a Samsung S10 and my wife is using an iphone 11. Is it a processing power or memory issue ? My wife used to have a much older iphone (6 or 7+ I think) but still could see the whole day's video but I have never been able to.