Earlier this year, my travel companion and I travelled on MXP-HKG-XXX route with reward ticket and revenue ticket, and holding QR G* and CX SL* respectively. We were both denied to check our bags to HKG only, and the station manager in red clothes told us CX prevent checking bags to HKG if the ticket doesn’t allow a stopover. I didn’t argue much since the outsourced lady seemed to be experienced. We ended up approaching transit desk in HKG to end our journey, and the ground service company (forgot the name) spent an extra hour to find our bags.