It seems to work fine in automatic mode.
I never even got a chance to put it into any of the automated routines this last time. Deleted it from SmartThings, reset it, re-added it to SmartThings, Opened & closed it a few times from the app, then set the auto-close thresholds. I then set it to auto-open at a high light value & put my phone away. Next morning it was offline (button still worked as always). I don't think the auto-open settings stuck as it didn't auto-open today & I only see the auto-close set in the app. I just looked & it's not attached to any SmartApps yet either. It kind of feels like ZigBee module is wigging out or something as the rest of the system works fine.