Hi everyone,
I have just realized that AutoCAD does change the dimension style of an Inventor drawing.
It goes like this:
1. You make a drawing. You set the font of the dimension style into ISOCP_IV50.
2. You make right click on the drawing box and click "Open in AutoCAD" to change some tags.
3. Inventor asks you to save and closes the document. The document is automatically opened in AutoCAD and after editing the block that includes the box you save and close.
4. You reopen the document in Inventor and the dimension style has changed into ISOCP.
Hope that someone could try it and see if it's not just my thing.
I'm using Autodesk Inventor 2017