Can not join the HSF collection on 0.7.1???

[KaoriP]

Event HP says The button will be active between Updates 0.7.0 and 0.7.2.

but cann't join the HSF collection now？

Browser : Google Chrome  64.0.3282.140

 

[phutev]

I seem to be seeing the same thing, the missions are no longer in game (was only part way through) and the news page does not have the join button anymore.