ON/OFF devices work fine, but I can't change temperature setpoint on thermostat or level on dimmers. The only option for those devices is Fast On and Fast Off. Am I doing something wrong, or is this the way it's designed?

I just verified on mine (eisy running 5.8.4), and I have access to the other thermostat, and dimming settings. 

Thanks for checking that. I'm running the same version. Would you be able to post a screenshot showing what you get when a dimmer or thermostat is selected? 

 

Thanks again. This is really weird (and frustrating). Mine still only shows the fast options. I tried three different browsers - same result.

What device models are they? My garage thermostat example is an insteon 2441TH, and the dimmer is a 2477D insteon switch.

Thermostat is GoControl GC-TBZ48 and dimmers are Homeseer WD200. All are Z-wave, all work just fine in Administrative Console and UD Mobile, and all worked just fine with portal web access when using ISY-994. It's a new problem since eisy upgrade.