Lugano to Lake Como - Ticket Problems

Hi guys, 

We are planning to go from Lucerne to Como (11th July). Last week we checked the itinerary for this date and it said that there was multiple trains from Lucerne-Lugano-Como - no reservation needed. But today we checked again and it said there are no trains available for our dates. 

One alternative option we found is to get the 8:18 train from Lucerne to Lugano, get there at 10:48 and then wait until 13:00 and get a direct Flixbus to Como for 14 EUR - arriving at 13:45. 

Is there a reason for this (not updated, closed lines, etc.)? Is there a better way to get to Como quicker from Lucerne? 

Thanks so much!