Operating system: Windows 10
Graphics card: Geforce GTX 690
Broken: 22.05.2019 and newer, blender-2.80-caf52e3779a9-win64 to.
Worked: blender-2.80-e78770039397-win64 - at 21.05.2019
Short description of error
Then use a convert curve (geometry is made with bevel profile) we get a mesh from base curve only, not a whole geometry. Same rezult when use a "Visual geometry to mesh" comand.
Exact steps for others to reproduce the error
Based on the default startup or other file:
Create BezierCurve, then BezierCircle. Use BezierCircle as bevel object. Then "Convert to Mesh"