Problem with save bodies command

Hello,

Please help me with the following problem: After drawing a Part using the Split command sometimes (not always) the message is a Failed to save document and computer crashes, if it not crashes of Split, crashes when Save Bodies - again Failed to save document, as do my impression that in experience marking Bodi sometimes opens tab Save as. I can not find any regularity. Part of the same on another computer Split and Save Bodies operate normally.

SolidworksEducator Student