After updating ArcGIS from 4.21 to 4.22 I noticed that sketched lines are not visible in 2D view. I am using SketchViewModel with a custom UI instead of Sketch Widget, which works fine. Below, I sketched 3 vertices, but the lines between the vertices are missing. When I complete the sketch, the lines do not appear either. Sketching lines works fine in 3D view and also when I sketch other shapes.
I am also able to get the lines to appear in 2D when I remove all the graphics from the sketchVM's layer and add the cloned graphics back to the layer.
sketchVM.getLayer().removeAll();
sketchVM.getLayer().add(graphic);
sketchVM.update(graphic, { tool: 'reshape' });
However, I would like to see the lines appear while editing the shape as I did in 4.21. Is this a bug in 4.22?
SOLVED
So the problem ended up being the Color attribute's alpha value was undefined, resulting in polyline not being visible except for the vertices. An undefined alpha value in v4.21 did not cause visibility issues of polyline while in 4.22 it results in the edges of a line not being visible. I don't see this documented anywhere?
