Swiss BCS3 near Zurich on Jul 24th 2022, loss of cabin pressure

A Swiss Bombardier C-Series CS-300, registration HB-JCG performing positioning flight LX-5141 from Ibiza,SP (Spain) to Zurich (Switzerland) with just crew on board, was enroute at FL300 about 100nm south of Zurich (in Italian Airspace) when the crew reported problems with the cabin pressure, descended to FL280 at first and then to FL140. The crew advised operations were normal, no passengers on board, no emergency services needed. The aircraft continued to Zurich for a safe landing on runway 14 about 35 minutes after leaving FL300.