Flickering drop-down-boxes in BB editor

Development Rendering
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1

Hi all,

whenever I change the zoom level in the BB editor from 1:1 to 1:x the drop-down-boxes start flickering like crazy when you are selecting them (e.g. LineTraceByChannel → Trace Channel). It looks like the drop-down-list is updating the visuals for it all the time.

I don’t know if this is related to my system (dual screen setup, GTX 1080, Windows 10 latest build), but this is annoying like hell.

Is there a solution or workaround for this behavior?

Thanks

Terry

2

Hello Terry J. N.,

I am unable to reproduce the flickering that you are seeing on your end. I have a few questions for you that will help narrow down what issue it is that you are experiencing.

Quick questions:

  1. Can you reproduce this issue in a clean project?
  2. If so, could you provide a detailed list of steps to reproduce this issue on our end?
  3. Could you provide screen shots of any blueprints/settings that may be involved with this issue?
3

Hi Rudy,

thanks for your reply.

  1. Yes, it also happens in a new project (e.g. ThirdPerson with starter Content). I noticed that the flickering in the new project is not as worse as in my current project I’m working on.

  2. Open ThirdPersonCharacter BP, add LinetraceByChannel, zoom out to e.g. -2, click drop-down for “Trace Channel” → flickering

  3. Already tried to take a screenshot, but it seems that the drop-down-boxes are rendered differently thus the screenshot doesn’t show the distortion. I’ll try to record it to make it kind of visible for you guys… will also check my editor settings.

KR
Terry

4

Hello Terry J.N.,

After doing a a bit of digging I found that this is a known issue. I have provided a link to the public tracker. I hope that this information helps.

Link: Unreal Engine Issues and Bug Tracker (UE-4457)

Make it a great day

5

Wow, this stuff is borked for a long time. Thanks for your answer Rudy, hope it gets fixed in the future.

BR

Terry

6

If anyone else had this problem in 4.14: It was fixed with the last 4.14.1 patch

UE-38706 Dropdowns display incorrectly in non 1:1 zoom in BP on Mac and PC