Changing "Direction" has no effect on bowing symbols
Add the "Up bow" or "Down bow" symbol from the "Articulations" palette to a note. Then press the "x" key to flip the symbol. The symbol is now underneath the note, but it has not been flipped upside down like it should have been. In the inspector, change the Direction to "Down". This has no effect. Inverted versions of these symbols exist and are known to MuseScore (and are used in Behind Bars), but due to the way they are named, the mechanism for selecting the appropriate symbol fails to work.