Summary
since 5.8.0 Ribbon Emitters appear broken when set to GPU compute instead of CPU. Ribbons exhibit wrong link order and/or UVs and produce heavy visual artifacts.
Please note that these issues do not appear in 5.7 and below.
What type of bug are you experiencing?
UI/Tools
Steps to Reproduce
-
Create a default “Ribbon Link Order” Niagara system.
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Change emitter from CPU to GPU Compute.
Expected Result
UVs and Link Order stay the same, no changes observed.
Observed Result
UVs appear to change, can no longer reliably work with ribbon link order.
Very frustrating for such things as bending flames.
Platform
Desktop, Windows 11, rtx 5090,
only since UE 5.8.0 and still in UE 5.8.1.
Operating System
Windows 11
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Additional Notes
I have tried to fix it, i was not able. Require help. Please fix whatever broke in the 5.7-5.8 transition.