Data entry field for blueprint Array Add is uneditable until the Add is copy and pasted

Data entry field for blueprint Array Add is uneditable until the Add is copy and pasted, this also occurs if you add an array via right click Array and then link a variable to the array

1. Download and Open 4.13 Release
2. Create a Blank Project
3. Open the Level Blueprint
4. Create a New Variable String and convert it to an Array by clicking the Array button next to Vertable time in the Details Panel
5. Compile
6. Left click and Drag the Variable into the blueprint and select Get
7. Drag off the Array and Click add
8. Copy and paste the Add node
9. Link the Variable to the array input
   Result
   The datainput field for the array isn't editable

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