Fallout 3 Wrye Bash Error

[crowlotus]

Maybe someone on here can explain WTF is going on when trying to build a bash patch. I get the following error EVERY time and can't wrap my head around a solution:

Traceback (most recent call last):
  File "bash\basher\patcher_dialog.py", line 185, in PatchExecute
  File "bash\basher\patcher_dialog.py", line 287, in _save_pbash
  File "bash\mod_files.py", line 241, in safeSave
  File "bash\mod_files.py", line 273, in save
  File "bash\brec\record_groups.py", line 307, in dump
  File "bash\brec\record_groups.py", line 179, in _write_header
  File "bash\brec\record_groups.py", line 300, in getSize
  File "bash\brec\record_groups.py", line 300, in <genexpr>
  File "bash\brec\record_structs.py", line 431, in getSize
  File "bash\brec\record_structs.py", line 584, in dumpData
  File "bash\brec\record_structs.py", line 202, in dumpData
  File "bash\brec\basic_elements.py", line 205, in dumpData
  File "bash\brec\advanced_elements.py", line 530, in pack_subrecord_data
struct.error: pack expected 28 items for packing (got 2)

Traceback (most recent call last):
  File "bash\gui\events.py", line 180, in _post
  File "bash\balt.py", line 705, in _conversation_wrapper
  File "bash\basher\patcher_dialog.py", line 185, in PatchExecute
  File "bash\basher\patcher_dialog.py", line 287, in _save_pbash
  File "bash\mod_files.py", line 241, in safeSave
  File "bash\mod_files.py", line 273, in save
  File "bash\brec\record_groups.py", line 307, in dump
  File "bash\brec\record_groups.py", line 179, in _write_header
  File "bash\brec\record_groups.py", line 300, in getSize
  File "bash\brec\record_groups.py", line 300, in <genexpr>
  File "bash\brec\record_structs.py", line 431, in getSize
  File "bash\brec\record_structs.py", line 584, in dumpData
  File "bash\brec\record_structs.py", line 202, in dumpData
  File "bash\brec\basic_elements.py", line 205, in dumpData
  File "bash\brec\advanced_elements.py", line 530, in pack_subrecord_data
struct.error: pack expected 28 items for packing (got 2)