Hello,
We are aware of this animation rendering issue on Safari.
Workaround would be to use 3D translation to move text and images in x and y in stead of using the selection tool, which sets top/left properties in animation.
This means you might have to re-create the animations by using 3D translation tool (G) or setting x, y px values from Properties Inspector under 3D position and view.
Could you try it to see if that works on Safari and other browsers?
Regards,
Mariko (GWD team)