[Failure to duplicate a part]

Here is my project and the model. Also, I don't understand why the scale dialog is showing 20.6 x 11.7 x 0.7 dimensions, while "Object list" is showing 223.6 x 90.9 x 0.8 dimensions? See screen capture.

plug.stl CE3_plug.3mf

[Failure to duplicate a part]

10 hours ago, dsp said:

ah i wouldn't know that, still running 4.13

My version is 4.13.2

[Failure to duplicate a part]

5 hours ago, nallath said:

Duplicating not working for 5.1 when you are in one at a time mode. I've fixed that for 5.2, which should be out soon.

Will using an older version help in the meantime? Which one?

[Failure to duplicate a part]

I have a small part, which physically can be duplicated into at least 4 x 4 array, but Cura complains about not enough volume even for a single copy. I've duplicated larger parts in the past without problems. What can be wrong here? I scaled this part about x0.25 after loading from file. Is this is a problem?