OKit seems we're not the only one with that problem
They integrated Profiler and LCD Manager, and the new GUI is big and flashy, but very unintuitive IMHO. I kept searching for 'IMPORT profile' for quite some time, finally imported ito it, only to see my macros are not working.
There's a Legacy section at Logitech main site, so we can still download older version (v3.06).
Same issue here, along with the mouse profiler not working. I'm now in the process of bailing from the logitech ship since thier software quality is degrading.