I took your advice and did try a few times since then with the same results. The property shows up, available for 2 rooms, 2 nights in the search, but when booking it says availability has changed. It then disappears from the search for about 30 minutes and then comes back. It’s been quite frustrating. It’s available for individual, one night stays as well but I have no confidence that if I attempt to book it this way, it’ll actually work out.