Pipe objects not being converted to USD

Hello, I once posted on a forum because only Pipe Fittings were not converted when converting from Revit to Omniverse, but somehow it worked again, so I just left it like that. But recently, when I converted again, all the pipes were gone and converted. I don’t see any changes in the Setting values. But I don’t know why some items are missing.

I am using “Create 2023.2.2” in the “Send to Omniverse Settings” value, and I selected “Optimize Memory” in the “Scene Optimization” value.
In the “View Options” value, I selected “View Name - Navisworks Out View”, and for reference, all the objects I want to convert are visible in the actual Navisworks Out View.
I will not write the rest because it is a standard option.