Unfortunately, I have the same issue with my '01 W208. The older software performed the "fall back" this weekend (and an older handheld device at my office did the same).

Unfortunately, the system will override any attempt to reset the hour. But as a temporary measure, you can change the time zone to something that is an hour ahead. Once the real standard daylight time arrives next week, you can revert back to your correct local time zone.

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car