if i open up a marketplace map such as blueprint office map and move objects it does not freeze up way does it do it in my map but in the office map it works fine.
Can you give me a detailed description of the map that is causing this error for you? What blueprints if any are you using, Particle Systems, Skeletal Meshes? You said you opened the Blueprint Office map and had no issues, have you tried any of the other sample content to see if they may also be experiencing this issue? Is this actually producing an engine crash? If so, please upload your Crash log files which can be found at [project]\Saved\Logs folder and the CrashReportClient.log file located in C:\Program Files\Unreal Engine\4.0\Engine\Programs\CrashReportClient\Saved\Logs
Let us know and we can begin to track down this issue for you -