FR 955 non-solar, FW 11.12:
Today my time freezed on a default clock face (hh:mm, no seconds enabled) in normal mode. A swipe to another widget and back actualize the time. There are still some main bugs in this FW :-/
I had the same thing - I thought I was losing my mind. Glanced at my watch, 11:05, looked back moments later, 11:25.