I added a HDR texture in cycles in world properties and after that I can’t add/change textures for any objects. If I try, I always get the world texture properties.
Change the node editor from World to Object.
I changed from World to Object and the selected object and corresponding material is also correct, but everything on the node editor menus is “grayed out”.
Post a blend with one object of your scene so it ll be possible to the others to investigate.
Ok, now it’s working, but I must admit it took a bit more effort than expected