My recent uses have decreased but not disappeared. It appears that the time period for recent uses has been set to a date in the more recent past. On War my counts are in the low double digits corresponding roughly to a dozen or so scavenges, forages and a hamster mugging. On Peace where I'm more active, all counts are in the 3 to 4 digit range.
Prior to this reset, the counts seemed to be from long before the server merge (excepting for fortitude).
There is also about a 1 minute delay after loading where mouse over displays nothing.