I’ve been using AutoCAD Electrical for some months without problems.
Last week my UNDO command went crazy
Each time I open a file, it is turned off or disabled.
I type undo in the command line and I receive the actual settings
“Current settings: Auto = Off, Control = None, Combine = Yes, Layer = Yes
Enter an undo control option [All/none/One/Combine/Layer] <All>:”
I press enter key, and type undo again, the settings were changed
Current settings: Auto = On, Control = All, Combine = Yes, Layer = Yes
Now every thing it’s OK.
I have tried FILEDIA and UNDOCTL, without success.
Probably it’s very easy, but I do not know how to fix it.
I kow how you feel. I'm going through the same thing, see my post
And appearently this has been an acade bug for a long time.