Pilot Assist unavailable when towing

My 2017 XC90 Momentum had its first annual service in December 2017. I noticed that the pilot assist was unavailable when towing my caravan and have had it confirmed by Volvo that they have rendered the function unavailable when towing for safety reasons. For the first 12 months i enjoyed towing with both adaptive cruise control and pilot assist engaged, albeit mainly on motorways and straight dual carriageways. I am therefore disappointed that the function has been made unavailable and that Volvo did not have the courtesy to advise me that they were withdrawing the function in the software update. Has anyone else experienced either of these issues?
Yes, same here. BLISS is deactivated too.