Same Problem here (Iphone 12 Pro Max 512Gb : My Photos and Video usage grew in a instance. The rest of my data compared with my just transfered data from my Iphone X Max is OK. What did i do : I Owned a Iphone XS Max 512Gb /* phone worked still perfect */ I Bought a Iphone 12 Pro Max 512Gb Installed the new Iphone 12 by phone trasfer /*no restore from icloud backup*/ The proces went without a glitch . Direct after the transfer i checked the total of Free space on my Iphone 12 to do a first compare to see if it was near the Iphone XS Max. /* I am not near my Iphone XR Max at this moment */ My Iphone 12 Max Pro has Capacity=512Gb ; Available=65,73Gb My Iphone XR Max has Capacity=512Gb ; Available=325Gb /*about these numbers, see comment above*/ Number of Fotos and Video's where the same on both phones Video's=3215 ; Foto's=39.775 /*arround these numbers*/ in Settings-General-Iphone-Storage /*sorry translated from the Dutch Language my phone is on*/ I saw that this large cunsumption of storage came from photo's and Video's and not from the other apps. Is Iphone 12 making a FileTable-Copy (imaging) somewhere by mistake or forgets to remove this after file tranfer ?? I tried to lookup if i can find a way to see if the files count really have this ammount of Gb's used on the Iphone 12. /*but luckely this is not possible with the phone :-)*/ Regards, Wido