Much better result showing hydrogen emission lines (and a hint of Fe lines?)
That is interesting. Unlike the spectra in the ATel and your latest spectrum, my spectrum from 20260813.103 definitely shows no net emission except for the H alpha P Cygni. (I’ve double checked everything and there is no obvious issue with the result so it looks like it has gone from emission to absorption and back to emission in a few days.
Cheers
Robin