SO, have an assembly with a few parts in it, has an odd symbol at the top of the assembly feature manager as shown below. When I try to save the assembly, it does not want to save as a SolidWorks assembly. It defaults to Parasolid, and has all other options except SolidWorks.
All parts have history features and can be edited, BUT NOT in the assembly, need to open them individually, then can work on them. I cannot constrain them, cannot drag them around etc. Not sure what the symbol is at the top of the assembly feature manager, prior to it's name. Have not see this before, so curious what is going on.