crush when sequence reversed
Sequence(Circle(A + (r1 + r2; -t), r2), t, -π + α, π, α)change to( revers the begin and end, and step α to -α)
Sequence(Circle(A + (r1 + r2; -t), r2), t, π, -π + α, -α)
It works, but when I save it, close the file and re-open it, it crushed, or just can not be open, or some extra points added, or the animation stopped.
maybe there is bug? (win10 + Geogebra 5.0.579-d).