I'm having the same problem. Try as I might, I've been unable to duplicate the error in a simple model & drawing package that I could share with the forum.
I have noted the following:
- The error occurs ONLY when I have my "Rescale" rule triggered to run with "After Open".
- The error occurs in my template drawing, which references a template skeletal model. After subsequently modifying the template model with iLogic, I get the error message when opening the drawing. It works fine with the original template model, and I can run the rule manually after the drawing is opened without any trouble.
It seems that the rule is auto-firing before the drawing and/or model have fully loaded, and Inventor complains that it can't access the info it needs (in my case, it might be the referenced model parameter I am accessing in the rule). This error message halts the entire loading process dead in its tracks, and the drawing views fail to update and reflect the changes to the model. I can manually highlight/update each base view, but then dimensions disappear and/or come in crooked and incorrect.
If the event-trigger is switched off, I can run this rule all day long without issue.
I hope this helps narrow down the problem, or at least gets the attention of the people who might be able to help.
