Outdoor plug issues

Ever since daylight savings time started, my Outdoor plug is unhappy. I had a simple on at 7am, off at 9pm local schedule. On Sunday after DST started, I noticed the plug was off at 8:30pm. I figured it somehow didn’t like the time change. I checked the schedule and it was showing on at 8am and off at 10pm. So, I removed that local schedule and added the corrected times back in (on at 7am, off at 9pm). Well, no luck. It’s still turning off sometime before 9pm. Any thoughts? It’s running the latest firmware (which thankfully fixed the energy graphs).