System Information
Operating system: Darwin-18.6.0-x86_64-i386-64bit 64 Bits
Graphics card: NVIDIA GeForce GTX 780M OpenGL Engine NVIDIA Corporation 4.1 NVIDIA-12.0.23 355.11.10.50.10.103
Blender Version
Broken: version: 2.80 (sub 74), branch: master, commit date: 2019-07-02 22:33, hash: rB50ccbe6bb233
Worked: (optional)
Short description of error
Grease Pencil Fill Tool not working properly
Exact steps for others to reproduce the error
- added a drawing of a head with no visible gaps
- added a new Grease Pencil Layer for the coloring process
- take the Fill Tool and trying to fill the area of the skin with no success
- trying different settings with no success (Default, visible Strokes etc.)

