I've been FINALLY working with 3.1 (took me nearly 4 months after the
upgrade to actually dust it off).
However, when I do Moves of vertices, objects, I'll click on the item and
the axis orientation will shift.
For example, I'll click on Conxtrain to X Axis, then go to move the item,
and the axis changes to Y. I then either have to click another axis
then go back to the setting I want, or try to click REAL FAST before the
axis setting swithes back after I let go of the object.