Last Spectrum Missing from SN.plot_spec()?

[RobFirth]

>SN.spec
OrderedDict([('SN10as_100320_DUP_WF_b01.dat',
              <pycoco.classes.SpectrumClass at 0x11d262ef0>),
             ('SN10as_100321_GEM_GM_r01.dat',
              <pycoco.classes.SpectrumClass at 0x11cfd5780>),
             ('SN10as_100322_DUP_WF_b01.dat',
              <pycoco.classes.SpectrumClass at 0x1220c2898>),
             ('SN10as_100323_DUP_WF_b01.dat',
              <pycoco.classes.SpectrumClass at 0x123406be0>),
             ('SN10as_100324_DUP_WF_b01.dat',
              <pycoco.classes.SpectrumClass at 0x123443b00>),
             ('SN10as_100325_DUP_WF_b01.dat',
              <pycoco.classes.SpectrumClass at 0x11ba51550>),
             ('SN10as_100325_VLT_XS_combined.dat',
              <pycoco.classes.SpectrumClass at 0x11cfd5f98>),
             ('SN10as_100326_VLT_XS_combined.dat',
              <pycoco.classes.SpectrumClass at 0x122994fd0>),
             ('SN10as_100328_VLT_XS_combined.dat',
              <pycoco.classes.SpectrumClass at 0x1229a4240>),
             ('SN10as_100329_VLT_XS_combined.dat',
              <pycoco.classes.SpectrumClass at 0x11d080e48>),
             ('SN10as_100409_SOA_GO_g01.dat',
              <pycoco.classes.SpectrumClass at 0x11d074ba8>),
             ('SN10as_100422_GEM_GM_c01.dat',
              <pycoco.classes.SpectrumClass at 0x11bd35208>),
             ('SN10as_100708_GEM_GM_c01.dat',
              <pycoco.classes.SpectrumClass at 0x122faffd0>),
             ('SN10as_100723_SOA_GO_g01.dat',
              <pycoco.classes.SpectrumClass at 0x11d40f2b0>),
             ('SN10as_100802_GEM_GM_c01.dat',
              <pycoco.classes.SpectrumClass at 0x11b796ba8>),
             ('SN10as_100805_SOA_GO_g01.dat',
              <pycoco.classes.SpectrumClass at 0x11bc1bcc0>),
             ('SN10as_110205_BAA_IM_b01.dat',
              <pycoco.classes.SpectrumClass at 0x11bd41240>),
             ('SN10as_110205_BAA_IM_r01.dat',
              <pycoco.classes.SpectrumClass at 0x11bd2c588>)])

note final file - 'SN10as_110205_BAA_IM_r01.dat'.