Aris Express ADF file has saved partially

Hi!

I have faced with Unable to Save Model error. When I have saved the ADF file again, no errors occurred.

By opening the ADF file, I see only a part of my model, but size of file and preview miniature are corresponds to the full model. I assumes the all data has been saved, but not showed due error in file.

Could you please help? Are there any way to repair my model?

Best regards, Alexey