[MDL ED] Entity to Item?

[Grimm The Grand Basset]

Why would you set it in a Compatibility Mode?

Well, I have had this computer for quite some time, and it seems like everything which won't work works on compatibility mode, or at least tries harder. I switched it off about an hour ago, edited my map and tried again with Amnesia, but everything was as before. It's now off, but per example my floors disappeared AGAIN... -.- Maybe I just can't use custom textures. There is no point to edit every single floor over and over again.