SDL Trados 2017 Return Package Import Error

Hi,

I have run into a very strange error when translators import their return package in WorldServer.

When we receive the translation, the import log shows the following error:

"Source segments of asset have been changed since export. Mismatch found at asset segment sequence 0000000092 and imported segment sequence 0000000092 Db text"

I found out what happens and it seems like when the package is imported to Trados Studio 2017 it creates the following bogus in the file:

If I manually delete that square it will upload fine and the change will show up just fine.

I have found 2 writing about this problem but none seem to be my case.

Any help is appreciated.

Thank you.

Charlie