I see the following messages in worker log:
2013-12-19T11:59:04.915+04:00 [11404 warning 'Default'] ERROR: [Mntapi_GetFirstBootDisk] more that *one* active volume found. Current active disk #0, another active disk #1
2013-12-19T11:59:04.915+04:00 [11404 warning 'Default'] ERROR: [Mntapi_GetFirstBootDisk] 2 active volumes found.
Probably the Converter gets as system disk the wrong one. Remove the boot option from the unappropriate partition.
HTH