Grace note stems should always point upwards by default

In 1.2. If you write grace notes in a high pitch (i.e. above the 3rd line of the staff), the stem will always point upwards, unless you flip them manually. That is in accordance with printed musical notation.

In 2.0. The grace notes follow the same rules as normal notes, and thus, a high pitch grace note will point downwards.
(Single grace notes work like 1.2., that's only for multiple grace notes)

Therefore, all the grace notes should work as in 1.2.

[r.a3d5580] - Windows xp

Thanks,
G.