Hi!
I now went to get a screenshot, and whaddayaknow, the problem's gone! Maybe fixed in the last update? Or, maybe as intermittent as all the other scaling issues I've seen since I started working on this setup, where I have an external HD monitor extending my laptops 4k one... :)
However, I'd write this one off as no repro. Attaching screenshot nonetheless, so you can see how bad it *isn't*.. Text on the right, under Rule, was previously nano-scale when running on the 4k monitor. Now it's not. :)
All the best,
Thomas Qvidahl