Have the same issue with excursions not loading using Edge, Firefox and Chrome on multiple windows devices, even after clearing cache and cookies. Happening for several days but thought would eventually work, like all IT issues on Princess. Right clicking does help but annoying to keep opening more windows (new window for list of excursions in a port, then a new window to read about the excursion, then a new window to book the excursion). Called Princess and 1 person I spoke with tried to mimic and happened to them too. Resolution - transfer me to someone else and after speaking to 3 people gave up.