Pr & En 12.1 do not allow to set up a custom LUT on render
recently I've noticed that it doesn't allow it when you click on that option, browse to... the following dialog window with an explorer won't open for me. [my system is Alienware 17 r3 windows 10]
It started probably from the latest update, previously I was able to link to a custom Looks.
I've recording the video to showcase the issue.