Hello im having a real issue with the new patch 4.7 i stupidly updated my whole project without testing and the translate object tool is acting strangely, its as if it is set to snap to grid, making moving objects carefully nearly impossible. When i try and move any static mesh its as if they are locked to the other meshes causing it to jitter when moving. If anyone knows how to fix this i would be eternally grateful.
I’m experiencing the same problem with 4.6
Hey Sythos,
Have you updated to 4.7.4 since experiencing this problem? If not, you may want to update your version of the editor to 4.7.4.
Also, have you changed any of the editor settings within the level editor? You can locate the level editor settings from within the ‘Editor Preferences’. You can get there by going to: Edit > Editor Preferences > Level Editor ‘Viewports’ > ‘Grid Snapping’ section
I currently have the following selected under ‘Grid Snapping’: Enable Grid Snapping, Enable Rotation Snapping & Enable Scale Snapping. The other two options are not selected on my Editor. I’d like to know if your options differ from mine?
Looking forward to hearing from you! 
It turned out to be Actor Snapping.
I recall hitting the “End” key a few weeks ago trying to achieve a one-time actor snap, but it enabled it permanently.
In UE4: Edit > Editor Preferences > Viewports > Enable Actor Snap
You may find that “Actor Snapping” is enabled. I couldn’t directly disable mine. I had to click “Reset to Defaults” at the top.
I hope this helps.