Which version of Lightroom are you using?
Which font size do you select before clicking on OK?
LR Version CC 2015.3 (1052427)
Operating Sys Windows Pro 10
I had Medium and changed it to next higher and it changed when I restarted LR
That was too large And I have been unable to change it back. When I change it and go back to Lr and then check back in to preference it is at the larger 150. I have Restarted Lr Several times without any change.
I used your method. In Edit-Preference with Font Auto, i pushed the paragraph indent key twice and it didn't move the 2 stops.
I got it to work. i'm now back to my medium.
Thanks for the help.