How did you get that node lol I had my for each loop node vanish and had to copy paste it from another project entirely but I couldnt find it anywhere.
I cant figure out how to get the Datetime+datetime node to appear.
Wierd. Ive had some brain melters in unreal but Sorting out something I thought would be simple has absolutly ruined me 
Im actually missing loads of nodes. Dont have any of these ones. Looks like its a known bug…Urghhhhh Well thats a project to a screeching Halt. What an annoyance.
I do have an update. fingers crossed it fixes it