Operating system: macOS Mojave (10.14.6)
Graphics card: NVIDIA GeForce GT 755M (1GB VRAM)
Broken: 2.81 official release
Worked: 2.80 official release
Short description of error
I have a rather complex texture node setup for a 100% procedurally textured eye which works in both Cycles and the Eevee renderer in Blender 2.80 official release.
In 2.81 it contiues to render correctly in Cycles, but not in Evee.
Exact steps for others to reproduce the error
To recreate the issue, simply open up the same file (attached) in both the 2.80 and 2.81 official releases.
If the issue is not specific to my system, you should see that the "sclera" object renders correctly in 2.80, but in 2.81 complete disappears.
I've attached the .blend file and Eevee render results that I am seeing.