If the software you are exporting from is 3dsMax, SketchUp, or Revit… then make certain that you have also updated to the latest version of the Exporter plugin and re-export the asset.
When ever you experience an engine crash, please always submit your crash reports (via the dialog window that pops up). I am unable to locate any crash reports from you, and the information they contain could be helpful.
The best way for us to investigate and resolve this issue will be for our staff to reproduce the issue. Please log a bug report for Unreal Studio here, and provide the asset or another sample asset that also encounters the issue.
Thank you.