In Sketch environment, the Mirror command doesn't finish by pressing [Enter] even if this is a standard in Inventor and the right-click menu shows it as such:
IIRC there are other commands in this situation.
Proposed solution:
In Mirror dialogue, make the "Apply" button default. In the same way, mark "Done" button as cancelling type in order to respond to [Esc] key.
Forums Links
Can't find what you're looking for? Ask the community or share your knowledge.