Not a Bug Last activity is incorrect

[alfa1]

As you see in the screenshot above the last activity is listed at the top profile on the left as Saturday 2.30 AM, while it is listed in group statistics as Saturday 12.38 PM.

Either the group statistics is incorrect or there is a member missing from the most active members tab:
/members?order=activities

 

[Truonglv]

It's difference. Last activity of group stats block work whenever someone created an action in group.
Last activity of user work whenever visiting group that value will be updated through you don't make any actions.