Using the “create event” node (K2Node Create Delegate) that is NOT directly connected to a “bind event to” node will hide the combobox menu and signature info. See attached image.
Workaround:
If “create event” node is properly set by first directly connecting to an event and then selecting the function or event, then you can use the reroute node because it will remember the settings and hide it (not delete it).
Note:
There was a previous post of this bug at 4.13 release and is now marked as resolved for 4.18