The 2.2.0 release appears to have broken startLevelChange functionality for the "up" direction. To duplicate:
Select a dimmer from the Hubitat device list
Enter a fairly low "setLevel" value such as 5 or 10 and click the "Set Level" button
Set the "startLevelChange" direction to "up"
Click the "startLevelChange" button
The dimmer will either go to full bright without ramping then dim back down to a value lower than the value set in step 2 or will immediately dim down to what appears to be a dim value of 1 or 2. without going to full bright.
This problem occurred for me with version 2.2.0 and continues to occur with the current 2.2.0.126 release.
I haven’t tried changing dimmer levels from any device settings pages recently, but haven’t noticed any issues with start-level-change-up with my usual button controller devices since updating the hub firmware a week or so ago.
All of the devices are GE Z-Wave Plus paddle dimmers. I originally noticed the problem with a 5 button Pico that was setup over a year ago using Button Controller 1-5. I assumed that the issue was related to the un-retireing of the Button Controller app in the 2.2.0 release but found that the issue also exists when using startLevelChange up on the device page.