Cameron White

I think you might want to have `Cook Frames as Single Work Item` on, since you want to generate a single USD file with the time samples from the whole frame range?

Correct, there isn't a way to revert to the old behaviour, unless perhaps if you adjust the attribute's tuple size temporarily while debugging. It's always enabled for float attributes with a tuple size of 9 or 16
You might also find it useful to enable "Decomposed Matrices" in the spreadsheet's View menu

qconvert() returns an angle/axis vector, where the vector's direction is the axis and the magnitude is the rotation around that axis

You might be looking for quaterniontoeuler() instead?