missing posts

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I logged on this morning and found some of my replies to posts missing, plus a number of the "best responses" I had previously awarded were now " unresolved"... I checked one that I was sure I had resolved, and indeed, the "winner" had posted back their gratitude about being chosen. Yet their little pencil was missing. Of course, I reselected them as best response. Anyone else notice this today? (I know it's happened before, I did a topic search and came up with a post from 3 months ago.)