stef.ttt on "[Plugin: Quick Event Manager] Number more than 1 do not show additional information"

Hi,
I have set "Show box to add more names if number attending is greater than 1" ON. But when I register more than 1, it does not show the additional box to put names on it.
thanks for creating this great plugin.

regadrs
st

https://wordpress.org/plugins/quick-event-manager/