ImportProjectFromFile decode error

[DavidPMika]

from acd.api import ImportProjectFromFile
controller = ImportProjectFromFile("my.ACD").import_project().controller

results in

Traceback (most recent call last):
File "", line 1, in
File "/home/m/.local/lib/python3.10/site-packages/acd/api.py", line 44, in import_project
export = ExportL5x(self.filename)
File "", line 7, in init
File "/home/m/.local/lib/python3.10/site-packages/acd/l5x/export_l5x.py", line 114, in post_init
CommentsRecord(self._cur, record)
File "", line 5, in init
File "/home/m/.local/lib/python3.10/site-packages/acd/record/comments.py", line 16, in post_init
r = FafaComents.from_bytes(self.dat_record.record.record_buffer)
File "/home/m/.local/lib/python3.10/site-packages/kaitaistruct.py", line 52, in from_bytes
return cls(KaitaiStream(BytesIO(buf)))
File "/home/m/.local/lib/python3.10/site-packages/acd/generated/comments/fafa_coments.py", line 19, in init
self._read()
File "/home/m/.local/lib/python3.10/site-packages/acd/generated/comments/fafa_coments.py", line 38, in _read
self.body = FafaComents.AsciiRecord(_io__raw_body, self, self._root)
File "/home/m/.local/lib/python3.10/site-packages/acd/generated/comments/fafa_coments.py", line 84, in init
self._read()
File "/home/m/.local/lib/python3.10/site-packages/acd/generated/comments/fafa_coments.py", line 92, in _read
self._io.read_bytes_term(0, False, True, True)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0x9e in position 0: invalid start byte