My TARDIS in survival mode disappeared on me when I got out of my TARDIS from the Nether to the Overworld. It has done this once before and I was trapped in Classic Minecraft so i had to kill myself to go home to try and find my TARDIS but my bound TARDIS key was in a chest in C.M.C. Now when I go to where it's supposed to be, it isn't there! If someone has had the same problem or can figure out how to get it back, please let me know!

This is a common glitch. A lot of Tardis destinations will actually break your Tardis if you try to go to any of them. John said he will look into it for U44 but until then the only thing you can really do is get another Tardis or if you are on the server ask for help from staff.

My TARDIS has done this multiple times, and if it is the same thing as what I'm thinking of, all you have to do is break a block near by (update a block) and if it is the same glitch I'm getting the TARDIS SHOULD reappear. If it's not that I can't help you.

Thanks ill try these