I’ve decided to buy the Optima Nova font. But now that I use it, I run into the problem that suddenly my fallback for Cyrillic has stopped working.

\definefallbackfamily

[archimate]

[ss]

[Helvetica]

[preset=range:cyrillic,

tf=style:light,

it=style:lightoblique,

bf=style:regular,

bi=style:oblique,

force=yes,

rscale=1.0]

\definefontfamily

[archimate]

[ss]

[OptimaLT-Medium]

\setupbodyfont[archimate]

\starttext

The quick brown fox jumped over the lazy dog. Ядро метамодели.

\stoptext

With

\definefontfamily

[archimate]

[ss]

[Optima]

Cyrillic fallback works (as does the old Optima). What do I need to do to remedy that?

Thanks,