Error when saving : "Unable to write streams correctly"

Hello CATIA User Community,

Has anyone come accross this error when saving modifications in Assembly Design ? It happens randomly.

"Message description: unable to write streams correctly"

"Message Advice : proceed to local save to keep your data and retry the save operation after restoring from local save"

When it occurs I can not make a local save ( the button is greyed out )

I've checked the DS Support Knowledge Base but they don't mention the root cause of the problem: It is either "not reproducible anymore" or "fixed on the next version".

(3DEXPERIENCE 2016x)