Whereas up till now it was possible to build everything using Devilsteel, which falls under the category of “Stoney” stuffs, for balance purposes it is now only possible to build buidlings such as walls, doors, barricades. This to prevent being able to, using Devilsteel, build, uninstall and then transport or sell things like tables, which did not have the correct relative mass and a hard to balance value.

If you have built anything it should not be a problem, however. Let me know if you run into problems.