Using the latest release (
ConTeXt
ver: 2024.06.16 18:22 LMTX
fmt: 2024.6.17, t
he following renders correctly with pagella but not cambria.
\setupbodyfont[cambria, 12pt]
\starttext
\startformula
s\of(1) = s\of (\set{0}) = \set{0} \cup \set{\set{0}}
\stopformula
\stoptext
__martin