I have received some advice that changes to Sierra, I will try later.
What happens is:
Open the drawing well, an existing one or a new one, it does not matter; I
start working fine and after 3 or 4 commands selected from the ToolSet or
from the command bar, the program disappears, leaving only the command bar
up and all locked; You can only do Force Exit to unlock it

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*JOSE RAFAEL BAYONA FLOREZ*
*ARQUITECTO*
*3103249828*