HALion sounds not assigned to instrumental parts

Only these two (see attachment)

In Dorico, please choose from the main menu Help > Create Diagnostics Report. That will create a zip file on your desktop, please send it to u dot stoermer at steinberg dot de.

Yes, it definitely appears that HSO is not properly installed, or at least is not being found by HALion Sonic SE. Please do as Ulf asks and I’m sure he’ll be able to figure out the missing link.