I found the data is not consistent in EWM database. For example:
MTV3402983 finish date is 08/10/2004,
FFV3403073 (link MTV3402983) create date is 02/05/2014.
In SYSOTVS the create date of FFV3403073 is 02/05/2557.
All the date are chaos.
We never meet this situation before. If the data is not created by EWM function normally,
we could not confirm which step goes wrong.
Sorry for we could not figuring out the cause of your question.