Has anyone heard of planned maintenance on the Tirano-Milano track this summer? We will be traveling from Zurich using regional trains over the Bernina Pass in early September, and I've been monitoring the Trenitalia website for the Tirano-Milano Centrale portion. It looks like a new schedule has been released and, unfortunately, it's different from what we were expecting based on all of the previous months. Starting 11June23, it appears there will be bus service between Tirano and Sondrio, causing the Tirano departure time to change from 11:08 to 10:56. Our train from the St Moritz area arrives at 11:00, so we'd miss the planned connection. I couldn't find an announcement on the Trenitalia or Trenord websites, nor elsewhere for that matter, so I thought I'd check if anyone here has heard.
Interestingly, if one tries to route from Tirano to Milano Centrale on the SBB website, the normally-nonstop trip now is routed back through Chur and then Pfäffikon SZ and Arth-Goldau before continuing to Milano. At least the Trenitalia booking just gives you a short-ish bus ride.