OK, here I come, with another question!
I just started an extended writing session on my Duck Mini for the first time, and realized that pressing the Fn key causes other modifiers to be released. I am trying to hold shift and use a Fn layer HHKB-style arrow key shortcut to select text, but it's not working, because the Shift key is being released when I press Fn. What's up with that?!? Is there a way to work around it?
I could desolder the 1u Fn key, put in a 2.75x right shift (which I might do anyway), and use the right Ctrl with software remapping to achieve roughly the same thing. But, it seems like a serious firmware bug if the keyboard can't support Shift + Fn.