Hello and welcome to the communities.
Note: Discussion successfully moved from Converter to Open Virtualization Format Tool
There is a similar discussion here - it might be worth looking into either the annotation or trying a newer version.
Brian Atkinson | vExpert | VMTN Moderator | Author of "VCP5-DCV VMware Certified Professional-Data Center Virtualization on vSphere 5.5 Study Guide: VCP-550" | @vmroyale | http://vmroyale.com