The issue is with the function on the left. Show us how it looks inside.
This is the interface. Where is the function implementation? What is even the point of using an Interface here?!
Why, how did you work?
It’s just a regular function. But it does not matter here. There’s something wrong with the implementation and you’ve yet to present it. Can’t help otherwise.
Can you send me your file?
I do not have it. I don’t keep these. What exactly is stopping you from a creating a function and adding a bunch of pins?
More about functions:
he made it but when he click with his mouse the wire stick from both sides and when he click again unreal make another wire and also stick From both sides
and he doesn’t know what is exactly the problem
If you cannot show the script in the function, no one can help you.
- make a new function
- copy the nodes
- add pins
- call function
turns out he made the function in the interface 
will try your solution