When I create a layout with a legend, some settings cause the column width to be way to large and I get a lot of white space between columns.


This is not a matter of word wrapping like in this post! The guides in the screenshot are 90mm apart, so you can see it wraps correctly but still adds space between columns.
The problem seems to be linked to the descriptions, because if I disable them columns width is as it should be.
Interesting is: if I change the order to Patch | Label | Description, column width is normal as well. Actually, the problem only exists when using Label | Patch | Description or Description | Patch | Label

What I have tried so far: pretty much everything. I went through most legend settings and legend item settings, including text settings, to see if anything makes a difference. I also changed the descriptions (e. g. to plain text without a line break, so I can rule that out as the source of the problem).
I created a new layout from scratch with a new legend (Legend 1 from the standard style). As soon as I change the order to Label | Patch | Description the problem occurs. I didn't touch any other setting.
I'm currently using AGP 3.4.2, but had the same problem already with 3.1.? (never had 3.2 or 3.3 installed).