Changing 'Manual Focus Distance' at Runtime crashing Engine

Hi there,

I’m currently working on a screenshot mode for my project, in which I’m accessing various camera settings / image effect settings at runtime via a UMG elements.

I’m experiencing a hard crash at runtime when changing the ‘Manual Focus Distance’ setting, despite it working in the Editor Preview just fine.

Looking for any advise on getting it working if possible please, not sure if its a 4.15 bug?


Hello DarrenBailey,

I was not able to reproduce this issue on our end. I have a couple of questions that will help me narrow down your issue.

  1. Can you reproduce this issue in a new project?
  2. If so, can you provide a detailed list of steps so I can reproduce this issue?
  3. Could you provide screenshots of your issue?


Hi ,

Yeah I’ve just reproduced it on a fresh project with No Starter Content.

I’ll Provide a screenshot on the blueprint. Its added to a New Pawn which would be used as the character controller, but essentially I’m just adding to the Manual Focus Distance variable on a key press In this example, which works fine when previewing inside the Editor, but its crashes when I press the Key running the Build.

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.

UE 4.23 - still crashing when focus change to closer distance