On the SBB App (and I suppose also on the website) the Métro in Lausanne is displayed as M m1 or M m2 and then in the extended version (english): underground m2. I understand why this is happening as the system displays the type and number separately but in the case of Lausanne the number is the stylized m1 or m2.
Would be nice to see a fix which changes the type of transport M only for Lausanne to a m.