After upgrading a Camtasia Studio 8 project that contains CAMREC files on the timeline, Camtasia 2018 will hang while editing the timeline. This behavior can also occur when to rendering the project.
This is a known issue that we hope to fix in a future release. The problem is specific to editing CAMREC files in Camtasia 2018. We recommend finishing older projects in Camtasia Studio 8 or Camtasia 9 and starting new projects in Camtasia 2018.