joining a group from groups directory page does not update group memberships activity feed

i have a setup with a default bp theme but with bp-groups-hierarchy plugin installed. (not sure if it matters)

when i join a group from groups directory page it does not show up in the activity feed of the group as it should. it shows as active in the last seconds but the group memberships feed does not update.

when i do this from inside the group it works all fine.