UPDATE (10/09/16): the problem reported here is due to a bug in biber 2.6.
I want to have multiple citations in textcite in the text with a different ordering scheme than in the bibliography. I am using biblatex 3.6 with biber 2.6 In moewe's previous answer a year ago it was suggested to use
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage[backend=biber,style=authoryear,sorting=ydnt,sortcites]{biblatex}
\addbibresource{biblatex-examples.bib}
\begin{document}
\textcite{worman,geer,baez/article,wilde,knuth:ct:a,knuth:ct:b}
\begin{refcontext}[sorting=ynt]
\printbibliography
\end{refcontext}
\end{document}
But when using this, I don't get the descending ordering he posted, but rather
Knuth (1984), Knuth (1986), Wilde (1899), Geer (1985), Worman (2002), and Baez and Lauda (2004)
What is particularly strange is that the ordering of the textcite and of the biblography are identical. This sorting is very strange, because it is ascending except for the
Wilde (1899)
outlier. I guess there has been a change to biblatex so that a new solution is needed (or there is a bug).

yntand comment out therefcontextto see the problem. – cfr Oct 07 '16 at 01:04biberteam and the quick reply. – jpfeifer Oct 09 '16 at 17:05refsegment=sectionand then a global bibliography printed sortednytin authoryear style. With biblatex v3.6 and biber v2.6 the citations are numbered according to their order in the global bibliography, rather than order of appearance.The new versions of biblatex 3.7 and biber 2.7 don't fix it. I get the old behavior back if I roll back to biblatex 3.4 and biber 2.5. Examples at issue on github.
– tmgriffiths Oct 14 '16 at 04:18