When multiple shorted components are connected in series, there seems to be unphysical 1Ohm impedance. I guess this is necessary to avoid some equation-solving issue (matrix singularity?), but I think 1Ohm is too large. I hope this value to be much smaller, for example 1e-6 Ohm, etc.
Shorted components are ideal short-circuits! What you observed is indeed a bug that appears sometimes if several shorted components are connected in series. Thanks a lot for reporting it! It will be fixed in the next release.