Hello LifeLessAtom,
So I just tested this on my end and the decal fades out of visibility before any sort of flickering is visible. I will say though, the reason it is flickering is due to the decal actor bounds. If you select the Decal component and there is an option within the Rendering section labeled ‘Use Attach Parent Bound’
Let me know if this resolved your issue or if you have additional questions.
Thank you,