Incorrect values from NAND node with 3 inputs

The values printed from the nand boolean node display incorrect values for the specific set-ups with 3 inputs that are in the repro steps. The node works as intended with 2 inputs, and with some of the setups with 3 inputs.

Regression:
This issue occurs in 4.14.3, 4.15.1, and the preview build for 4.16 for the binary versions of the engine.

1. Create a new project (no template or starter content needed)
2. Create a new Actor class blueprint > Name it "Actor_BP" > Open Actor_BP
3. Go to the event graph and add a print string to the Event tick node
4. Add a nand boolean node and attach its output to the print string
5. click the add pin button on the nand boolean so that there are 3 inputs
6. set-up the following inputs and then PIE each set (the order is top to bottom, )
7. unchecked, unchecked, checked
8. unchecked, checked, checked
9. checked, unchecked, checked
10. checked, checked, checked
    Result: values printed are the incorrect value
    Expected result: Values printed are the correct value