Can you take a look at this one - not high priority for me - but looks like a bug....
(I have refreshed my EasySocial SEF Cache and rebuilt my Joomla Search Index but issue remains)
mysite.com /swimming/events is the events page of my Swimming EasySocial Group.
If I check 'include past events' then the "Page 2 / Next" pagination list that gets created is....
http://mysite.com/events/0/events/created?includePast=1&start=10
That /0/ seems to be the problem - because this link goes to a page that isn't the past swimming events. Oddly if you then hit browser back, the pagination link becomes what it should be which is....
http://mysite.com/swimming/events/created?includePast=1&start=10
Are you able to replicate that?!