Old saves disappear from the list when I delete them, but reappear if I reopen the 'Load' page or restart the game. Affected saves are the ones made at 1.25.2015 and older. Not reproducible with saves made starting with 3.12.2015. All saves made with most recent versions of the game at the save time.
Also it would be great to allow selection of multiple saves with ctrl/shift, especially shift, to be able to delete multiple saves at once. The list gets large and hard to manage as time passes, and it is quite time consuming to delete them one by one.