A WD schema "copy file1 file2" doesn't work

Test procedure 1:

1. Create a "seq.txt" file in <some_path> location.
2. Click "Create element with command line tool".
3. Input a name.
4. Specify a slot.
5. There is no need to add a parameter.
6. Input the following execution string: "copy <some_path>\seq.txt <some_path>\seq2.txt" (change <some_path> to your location).
7. Execute the schema (that contains this element only).

!=> The task fails: "Can't launch copy...".

Test procedure 2:

1. Repeat steps 2-5 of the test procedure 1.
2. Input the following execution string: "copy "<some_path>\seq.txt" "<some_path>\seq3.txt"" (with quotes for paths).
3. Execute the schema.

=> The schema executes successfully.

4. Verify whether the file has been copied.

!=> There is no "seq3.txt" file, the command was not executed.