Bug: NAND gate inaccurate if more than 2 inputs

Development Programming & Scripting Blueprint
, , ,
1

Hi Epic team,

Moving this message from the forum - I was told this is the right place to post instead.

I found a bug in the blueprint NAND gate. It returns wrong results if used with more than one input. This is what it does now:

  • false false false = true (correct)
  • false false true = false (wrong)
  • false true false = true (correct)
  • false true true = false (wrong)
  • true false false = true (correct)
  • true false true = false (wrong)
  • true true false = true (correct)
  • true true true = true (wrong)

Similar behaviour happens for 4 inputs.

Not a big deal as it’s easy to replicate the correct behaviour through a AND + NOT obviously. The only issue is the time wasted in debugging until you figure out what is going on.

Best,
A

2

Hello A,

Thank you for submitting a bug report. I have reproduced this issue and logged a report for it here

You can track the report’s status as the issue is reviewed by our development staff. Please be aware that this issue may not be prioritized or fixed soon.

Cheers!

3

The bug report is marked as duplicate and it should be fixed May 2, 2017, but it is still persistent in UE4.19 …