I've made use of Command Center extensively with my old Helix Floor, but have encountered numerous issues with Command Center in Helix Stadium and Helix Stadium app (v.1.2.1 and below).
First: Occasionally, in one of my custom patches, an unused footswitch will get assigned a label and color to a block that doesn't exist in the patch. The switch is perpetually stuck in the On state and won't switch off when pressed. Going into Command Center on the unit, I can't clear or change the assignment. At best, I can remove the color and change the label to a blank space to make it appear as the switch is unassigned.
Second: In the Helix Stadium app, the app shows fewer switch assignments than on the unit itself. In one case that I'm looking at now, seven of the switches have assignments to blocks in my patch (along with one of those "phantom" assignments mentioned above), but the app only shows one swicth as having an assignment. All other switches appear (in the app only) as unassigned.
Changing to another patch and changing back, closing and reopening the app, or rebooting the Stadium do nothing to resolve the issue. Rebuilding the patch from scratch seems to be the only option.