mzagorowska

Hi, I ended up in this thread because the [demo Julia example ](https://osqp.org/docs/examples/setup-and-solve.html#julia)from the documentation didn't work (`using Compat.SparseArrays` errors) and I was thinking about opening an issue. The code...

Got this error as well, after using twinx().

A similar bug in the opposite direction: the legend shows dashes, but the line looks solid, is mentioned [here](https://discourse.julialang.org/t/arrows-in-plots/110629?u=blob). Apparently happens in gr() but not in pyplot()/pythonplot(). Version of plotting:...