body after saving is missing

[samo_poldauf10]

 when I edit the body and save the body, edit, close the project and open the body is missing.

please someone help. 

[g-andresen]

Hi,

Please share the file for reply.

File > export > save as f3d on local drive  > attach to post.

günther

[samo_poldauf10]

hi,

the model has large value, I would not like to share it here where everyone can download it