"Accomulate objects" parameter in the "Write sequence object" doesn't work

1. Create a scheme with the "Read sequence" element and the "Write sequence element".
2. Take a file with more then one sequence as an input for the "Read sequence" element.
3. Set the "Accomulate objects" parameters to False

The sequences must be either appended to an output file or written in different files if user specifies the "Existing file" option as "Append" or "Rename".

But in any of those cases WD takes the first sequence from the input file and writes it to the output file. Other sequences are missed