That sounds like a phone issue? How's your memory on your phone (total free, and RAM?).
Is there anythign speacil about your version of the game (where you got it, mod, etc?).
Try deactivating the volume for your device and see if that helps. (and if it does, than that tends to me it's a RAM thing).
Try trouble shooting your device with standard hiccup fixes (clean-up memory, re-start device, etc).
I have only used 63GB of the 125GB I have. I’ve restarted the phone several times. I originally had the game on Android but then switched to Apple. What does deactivating the volume of the device mean? I didn’t even know you could mod the game haha.
Well crud, that stinks. I was finally able to open one of the files some how (no idea how) but now it won’t let me save while I’m in dungeons or let me open my forth vault box. Haha guess I’ll just have to “suffer” through haha. Is there anything in the works to have a later addition for apple?