Status Quo: 
- the Hulu Desktop Behaviour works well with all supported remotes out 
of the box 
- the Hulu Desktop Behaviour acts differently with the particular 
Harmony profile you mentioned because the profile seems to be 
partially incorrectly programmed

If I'd make changes to work around the incorrectly programmed Harmony 
Profile, the result would be: 
- the Hulu Desktop Behaviour will no longer work well with any of the 
supported remotes - especially support for long presses would no 
longer work for them 
- the single seemingly incorrectly programmed Harmony Profile works

I'll keep things at the Status Quo because it is behaving correctly 
with all officially supported hardware. I strongly believe that what 
appears to be a broken Universal Remote profile should be fixed at the 
origin - in the Universal Remote, not in Remote Buddy. Thanks for your 
understanding.

Best regards, 
Felix Schwarz