In the TechDraw Workbench, I have imported a single Line made in the Sketcher, but it's not displayed nor exportable to SVG if its width is smaller than 0.50mm. It's working for other polylines also imported from the Sketcher.
In attachement is a basic test file I made with FreeCAD 0.17 and 0.18 on macOS.
Is it a bug or did I make a bad manipulation somewhere ?
OS: Mac OS X
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.18.13651 (Git)
Build type: Release
Branch: (HEAD detached at 4604bd9)
Python version: 2.7.14
Qt version: 5.10.1
Coin version: 4.0.0a
OCC version: 7.2.0
Locale: English/UnitedStates (en_US)