I don't even have an e: installed, and it started doing this mid-editing.

[Emilinrose]

so i was editing hydreigion, and this happened. I'd already repointed the moveset to have all 13 moves(there were only ten before.) then when editing the moves, it imploded.

[Window Title]
Piped error from sys.stderr: PLEASE REPORT

[Main Instruction]
ERROR:

[Content]
Traceback (most recent call last):
File "E:\Secret-Tool\build\mainWIN\out00-PYZ.pyz\wx._core", line 16767, in
File "", line 438, in reload_all_tabs
File "", line 454, in init
File "", line 540, in init
File "", line 723, in init
File "", line 784, in init
File "", line 1015, in generate_ui
File "E:\Secret-Tool\build\mainWIN\out00-PYZ.pyz\lib.Tools.rom_insertion_operations", line 104, in generate_list_of_names
IOError: [Errno 22] Invalid argument

[OK]

[cosarara]

That path with an e: is not on your computer, but where the tool executable was built. Anyway, if you give the detailed steps on how to make the program crash like this I guess I could take a look at it.