On the way back I again took a regional train from Milano to Verona, then #RJ86 to #Innsbruck, #RJX869 to #Wien, #EC341 to #Budapest (I narrowly missed #EC40347 shortly before). After a night in Budapest, #EC272 to Breclav and #EC100 to Ostrava (a tight connection, which worked because they were both delayed 7 min). Next morning, #EC108 to Warsaw (no seat reservation required despite what the interrail app says; this train was fully booked and corridors were also packed after Katowice).