I have this problem as well on Mac. Starting with a brand new document, I'm unable to text with a reasonable line spacing or (apparently) adjust the line spacing. This works perfectly fine on Windows.
As far as I can tell, Inkscape 0.92.x is unusable for text, at least on some computers. I'm not sure if it's all Macs or just me, though.
I have this problem as well on Mac. Starting with a brand new document, I'm unable to text with a reasonable line spacing or (apparently) adjust the line spacing. This works perfectly fine on Windows.
As far as I can tell, Inkscape 0.92.x is unusable for text, at least on some computers. I'm not sure if it's all Macs or just me, though.