"Drawing-Cannot-Be-Saved" Message Popped Up While Modelling In AS2014

Error message: “One or more objects in this drawing cannot be saved to the specified format. The operation was not completed and no file was created” pops up during modelling and attempt to save the file. To continue working on the model, closing and re-opening AS is necessary. However, some data will be lost. Please help. Thanks

Attachment: Drawing-Cannot-Be-Saved Message Popped Up While Modelling_2.png

We succeed to reproduce the issue only on details and we have fixed for 2015 Advance Steel version. It seems you find the same issue on the model so we need more information from you in order to reproduce it. Please send us the model and some steps to reproduce the problem. Any additional information from you will help us.

Try doing a purge and audit (extended to advance steel, enable fixing errors). Did the trick for me.

Hi, this is a known message.
This comes to us also for unexpectedly.
Reason we h et not yet had reported was because the unexpected occurs.
We like to see it resolved in version 2014!