I found alpenhorns (F an F# and both language ones) advanced range is smaller than standard?

i found alpenhorns (F an F# and both language ones) advanced range is smaller than standard? to me looks bug becouse is only expection what i seen.
luckily i very likely never going write such instrument (and if so i bet learn its range somewhere etc) and i found this becouse i looked instrument transpositon etc settings in instrument editor for my special needs. (hard describe in english why but does not matter)

Yes, I think you’re right. Thanks for reporting this – I will look at fixing this up.

I going tell if i found more.