There is an issue with selecting multiple meshes that are children of different scenes when the scale is different than the default. moving the static meshes together causes them to move at different rates. This issue does not appear to be a regression.
Versions Tested: Issue occurs in all versions tested
4.17.2 - CL: 3658906
4.18.1 - CL: 3754814
4.19.0 - CL: 3776583
Head over to the existingAnswerHub thread and let us know what's up.