Dorico Pro 3.5 sounds missing

I downloaded Dorico Pro 3.5 trial and while the sound library was still downloading I opened Dorico and started notating. After the sounds were downloaded and installed I quit Dorico and opened it again hoping the sounds would have appeared, but no. I can’t find a way to get any sound out now. Do I have to do something to activate the sound library?

If the Play mode options

  • Load Sounds for Unassigned Instruments

and

  • going into Playback Templates to re-apply the appropriate HALion soundset (even if it appears already applied)

do not work, you should probably reload the (two?) HALion sound packages.