Error to open some files

With some files that we create we got this error message ERROR OCCURED DURING THE SAVING, those files we are able to open in the trail version but not in the payed version, we check on 3 difrent machines and works fine on the othes laptops.

Try to uninstall and reinstall the DraftSight any ideas.

We try to change the format that save the version but still have issues.

: _SAVE

Drawing saved in R2018 format.

«Error»