Connecting Blueprint Function Input to Another Node Resets Default Value

Connecting an input of a function in a Blueprint Function Library that has a default value to a node will cause its default value to be reset to 0 when the function is called in another blueprint.

1. Open the editor
2. Create a new blueprint function library
3. Add two float inputs to NewFunction_0
4. Give the floats default values
5. Connect one of the input pins to another node, such as Random Float in Range
6. Compile & Save
7. Open the Level Blueprint
8. Call NewFunction_0

Result: Notice that the input pin that is connected to the Random Float in Range node has had its default value reset, while the other remains at its default value.

Expected: Both inputs would maintain their default values until explicitly changed.