Possible Bug in Connect IQ iPhone App with Setting Groups

With a recently uploaded watch face, I noticed that I couldn't save certain configurable settings on my iPhone that were inside a Settings Group. The phone app's "Save" button didn't provide a confirmation that these settings were saved. On the other hand, changing different settings not defined within a settings group worked fine.

I uploaded a slightly different version of the app with everything the same except with the settings group removed from the XML. At that point the phone app responded as expected and the watch's settings updated normally.

Is it possible that the iPhone Connect IQ app has a problem processing settings groups?

Edit: I just realized that someone else posted a similar report at [BUG] Settings groups don't work on Connect IQ iPhone app - Connect IQ Bug Reports - Connect IQ - Garmin Forums.