exporting problem

Hello,

I am using harmony 15 trial version it is easy to doing work on it and its simply awesome. But problem comes here, when i am exporting a project the exporting process is stops and the whole program is closed continuously. Please suggest me any solution.

I am also having this issue whenever I try to export more than 150 frames for Harmony 15 Advanced version. Toonboom crashes and then has to restart.