SW2011: Can't Unsuppress/Show a Feature

Hello,

What does it mean when one of your features (plane, flange, etc.) gets automatically suppressed and you no longer have an option to suppress/unsuppress or show/hide?

The full story can be found here:

https://forum.solidworks.com/message/194333#194333

It's not that I can't unsuppress the feature so much as I don't even have an option to anymore. Rebuilding and Forced Regen don't help.

I'm wondering if this is SolidWorks' way of telling me that the feature is unsolvable or locked out like when you set a dimension to read only.

I don't think I've ever seen a feature do this before. Has anyone ever encountered this

SolidworksParts And Features