Hi
Are there some limitations with the new mirror function? Trying to mirror some objects without success. If I import an Eurotruss .dwg file and mirror it with 'Relative to X: 0m' and the 'Duplicate' checkbox activated, the newly created object isn't mirrored and moved to the other side of the center line. Instead it is placed on top of the original object without any mirroring or moving. Exactly the same behavior can be seen with an object from the library. For example the 'Bar Counter'.
Thanks for your help
I'm having the same problem, although it only seems to affect certain objects.
For example, an 'actor' object from the built-in library mirrors perfectly, but a 'box' or 'microphone stand' also from the library just duplicates itself in the same position, regardless of the mirroring options selected.
There are limitations on the mirroring tool. For more information you may watch this webcast that explains them (around the 19th minute)