I have made a report for this issue. Please be patient while it is looked into!

Well according to the top of the page it displays the pings you get for pings made by the @ symbol. But I do seem to remember group pings being there before. I will see if those can be added back or if there was a reason they were removed.

Popping in to say that we are aware of this issue and that we are going to restructure how the ping history work for forum groups and personal pings / etc

In case you aren't a member of site update, Grace says that this should be fixed! Can a few of you confirm?

awesome :D locking as resolved!