The custom properties I created are not showing up as an option when I go to add them to the BOM. I have sheet that contains an assembly with a configuration for each configuration for one of the parts in the assembly.

this is the only sheet I've had trouble getting my custom properties to show up. I added custom properties to the full assembly and the parts. I used the same information for all of them as the two parts to the assembly are to be welded and are considered one part in our system, and I only need one copy of the informatin in the BOM.

in short, the custom properties I created aren't showing up as an option under custom properties, and I made absolute sure that they saved. please help

attached is the file but I only included enough parts and assemblies for the 2nd to last sheet to show that it has implemented for the other sheets with the individual parts and the sheet at the end which is the one I'm having trouble with.