I've been going back to some xbox projects recently. There appears to be a bug which I believe wasn't there last time I used it.
When using an ini in a frame to save/load, If the player signs out then the game crashes when you change frame.
It used to be only writing to and from the ini which caused this crash, so it was possible to check if the player was signed in before doing any ini operations. Now what appears to be happening is the game tries to save the ini changes to file when the frame is changed or the ini object is destroyed (like the iOS runtime). This isn't ideal for Xbox, as a player can sign out at any time, so when the frame ends it can cause a crash if the player has signed out.
Also, if you have a ini in a frame before the player(s) are signed in, the game will crash because the ini is trying to write something immediately for some reason, so it's trying to open a storage selector (if you have a memory card) at the same time as the sign-in selector which causes a crash.
I've attached an example mfa, follow the instructions within to replicate the crashes.