We are trying to combine some transport tasks.  On the Transport Task we want to use, we select the Available Single lines Tab and find the Transport Task we want to combine.  When we RMB and select Move a Current Transport Task, we get the following error:

We compare the transport task and all the information between the two Transport Tasks Match (Activity ID, Activity Sequence, Activity Description, Project ID, etc)

Has anyone else experienced this error?  

We are on App10 Update 8.

Thanks,

Gregg