That is really not all that uncommon. I remember reading somewhere that since all the Stardock sites are merged together, they have them spread out on a couple different servers to lighten the load. Those servers do not refresh at the same time, so any post can take a bit ot time to be seen in the recent activities list.
When in doubt about something getting posted.....wait a few (or 10) minutes, that avoids double posting. [e digicons]
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