Operating system: Windows-8.1-6.3.9600 64 Bits
Graphics card: GeForce GTX 970/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 417.22
Broken: version: 2.80 (sub 48), branch: master, commit date: 2019-03-15 00:41, hash: rB388ff003e28b
Short description of error
Hi everyone, I've been working with the new Grease pencil tool and came across a bug. When you activate "clamp" on one layer, the layers beneath get a thin white outline (alpha error). A workaround is to add another layer just below your clamp layer and set it to any blending mode except "regular", such as "overlay" or "subtract". This can be seen in the images below. The extra layer with the nose "highlight" set to "overlay" removes the alpha error. Blend file attached. Toggle the "Correction Layer" on/off to see the edge appear.
Thanks for looking into this. :-)