I just wanted to chime in here - I'm running FARR 2.93.01 on Win7 64-bit and was having a similar problem with settings not being saved. Specifically, I was trying to disable the CTRL + Spacebar hotkey because it interfered with Photoshop's Zoom tool hotkey. I set the PORTABLE=TRUE flag in ConfigDir.ini, set FARR to run as Administrator and the combination of the two seems to have worked. I was able to disable the default CTRL + Spacebar hotkey. Still looking forward to another build  ;)