I've heard a few reports of this, but was never able to figure out what happened.
A few questions:
did you "save" the model or "export" it?
was there a file created in the "models" directory after you saved the model?
Exactly which version of MH are you using?
Can you create a screenshot with how the load tab looks, and another of how the folder with the saved file looks?
Can you provide a log file of a session where you first save a model and then switch to the load tab? (See
http://www.makehumancommunity.org/wiki/ ... _report%3F)