For issues you find with the Switch and Console releases, please follow this link and give as much detail as possible. This is the speediest way to get info to Pipeworks and get a hotfix in the works.
For issues you find with the Mobile 1.3 update, please follow this link and give as much detail as possible. This is the speediest way to get info to DR Studios to look at your issue. Also, some troubleshooting hints here.
Hi there @Sir Arucard, welcome to the forums. The Truffle moving in over and over is a known issue and Pipeworks, the console developers, are working on it. I'm sorry, I don't know of any workarounds. You can kill them with lava, but they might keep coming back.
I did something pretty gross and worked it! I destroyed all houses and just maintain one available place then I started a murder and kill all npcs, everytime one truffle spawn, I kill him, everytime a normal npc spawn, I created a new available house until no Truffles spawn. Now the Truffles stopped, so if anyone has the same problem, just kill everyone until Truffles gone forever (you will have one left truffle after the bug left)