UE4 viewport translation tool doesn't work on any actors, but scale and rotate, do?

For some reason, my viewports translation tool (3D arrow tool that moves things). How do I fix it?

Check your grid snap settings (both whether it’s on/off and the grid size) for translate tool.
Also check whether it’s using local space (cube icon) or world space (globe icon) default is world space for translate tool.

Are all the Actors blueprint actors? If so, do they have a constructor function that sets their Location?