Thank for the suggestion of "Resetting Preferences". I tried it but had no effect on the issue I am facing.
I then did the following:
Uninstall Adobe Creative Suite, Lightroom and Photoshop.
Did a system and registry clean to insure there was nothing left behind of the suite.
Re-installed Creative Cloud, Lightroom and Photoshop.
The problem has not gone away.
If you or anyone else in the forums, have any other suggestions I would appreciate some pointers.
I'm having the same problem. Only on my XPS 15 laptop, not my desktop. I'm wondering if it's a 4k glitch... Adobe has had A LOT of problems with 4k and windows. While that makes sense in Phosohop, not so much in other apps (I'm looking at you, Bridge!). Anyway, this is driving me nuts in LR!!!
Yep having the same issue with my XPS 15 too, suspect it could be due to a 4k problem.
Unfortunately I have the same problem with a 4K laptop.
This does not resolve the problem but I can decrease the font size by entering in a specific font size rather than use the drop down menu in the identity plate editor. This fix gets lost though every time I reopen Lightroom.
It is maddening.
The only thing worked for me to enter very small size. Like 3-5, then it was multiplied up to a good looking one for the right side menu.
But the text identity on the left is useless on XPS15. I can only enter one digit character size. So the highest is 9 point. The dropdown menu is empty.