I've created a line layer using my point layer through the geometry generator tool described in this Creating all possible line segments between all points using QGIS Then I've used Edit Geometry => Split features tool for lines (I had multilines and I split it through this tool on the short lines with only two points). And now I get an error - invalid geometry. I've checked the geometry and the error is "Too few points in geometry component". I don't know why it's happened. Could somebody help me with it? I think that may be Null-length lines as a result of geometry generation step, but I don't know how to prevent it.
