Emissive Colours bleed into viewport

Hey Folks,

So at random times there appears a bright light at the edge of my level viewport (also when working on particles).
I have had this on a couple of different systems and both of them have an AMD RX480 graphics card.

Any of you had this problem as well or know how to fix it?
It does not break the engine or anything, more so it is a bit annoying.
(See screenshot for reference)


Hi BrokenInglish,

Thank you for submitting a bug report. I have reproduced this issue and logged a report for it here: Unreal Engine Issues and Bug Tracker (UE-39945)

I also added the info about this occurring in the main viewport as well in a private comment to the devs.

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.


I would like to add to that, that we also had it a couple of times in our main viewport while editing our levels. Sadly enough in that case it seems to be a bit more random (again RX480 cards).

That info has been added in a private comment to the developers.