Hey @wire2775, that’s really strange.
Off the top of my head, the only thing I can think of is that there is already a symbol in that group, which would prevent the creation of a new symbol. We don’t have support for nested symbols yet, but it is something we want to add.
The easiest way to troubleshoot this would probably to have you email me a copy of your project file. Let me know if that works for you.