@HalfMoonSpec You can try to hook it using a cheat to move objects, the chances are low, but you can try. Open console and type testingcheats true first then type bb.moveobjects open build mode and try to hook the mailbox on the edges. If nothing comes up, do the following. Move the Mods folder with your mods to your desktop, find localthumbcache.package and delete it, repair the game. Now you can check. Start the game and see where your mailbox is located, if it is within the grid, return it to the place where you put it. It remains to identify the problematic mod, for this, save the game and transfer the mods from the working one or more (if you have a lot of them), and start the game, go on a trip again, and immediately return (forget about saving the game while searching for the problem) , if the mailbox is still in place, transfer another batch of mods and start traveling again. Do this until the mailbox starts traveling within the grid, or out of the grid. If nothing changes and you have to put up with the fact that your mailbox is stuck on the edge of the grid forever, you can return the mods folder back. But you can always save your family in the gallery and start playing with your family, or just move to another lot.
