Seemed to have just lost 2 hours of PCB design work. Saved a file and when I re-opened it, it was totally blank. More Bugs!
Check:
Also make sure that the original PCB was not saved as a PCB Module.
@andyfierman History worked... Thank You
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Brand new interactions and interfaces.
Smooth support for design sizes of over 3W
devices or 10W pads.
More rigorous design constraints, more
standardized processes
For enterprises, more professional users.
Easy to use and quick to get started.
The process supports design scales of 300
devices or 1000 pads.
Supports simple circuit simulation.
For students, teachers, creators.
Check:
Also make sure that the original PCB was not saved as a PCB Module.