Hi everyone,

    I opened a part file containing only a single sketch. When I choose to edit the sketch, but make a mistake and try to undo that mistake, I get an error message stating "A change has been made to a sketch feature which cannot be canceled, or the sketch is very large and has undo switched off." I have to then close the part and reopen it to start over.

    I did have an issue with the "Automatic Solve" option being unchecked; however, even after checking this option, there is no impact on the problem mentioned above. The only think it changes is allowing me to drag sections of my sketch and create relations. I still can't use the undo functionality. Additionally, the undo button is grayed out in the "Edit" drop down menu.

    I have made sketches in the past with more complexity and size than the one I am currently working on, but did I did not create this sketch myself. Is there an option to turn the "Undo" functionality back on for this sketch?

Thank you in advance for any help you may be able to offer.