cx_freeze: cannot find path when using zip_include_packages

I freeze my application with cx_freeze on Windows 10 with the following options:

 

build_exe_options =

{ "build_exe" : build_path, "excludes" : ["tkinter", "distutils", "html", "unittest", "pydoc", "bz2", "pyexpat", "lzma"], "optimize" : 2, "zip_include_packages" : "*", "zip_exclude_packages" : "" }

 

Zip include is quite important for me because it brings down the program size to 1/5th. It worked well with PyQt5. However, with PySide6 I get the following error, when trying to start the executable. Everything works well, when placing PySide6 in zip_exclude_packages (which bloats the install size again).

 

---------------------------
cx_Freeze: Python error in main script
---------------------------
Traceback (most recent call last):
File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\Lib\site-packages\cx_Freeze\initscripts_startup_.py", line 120, in run
module_init.run(name + "_main_")
File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\Lib\site-packages\cx_Freeze\initscripts\Console.py", line 16, in run
exec(code, module_main._dict_)
File "MyProject.py", line 8, in <module>
File "<frozen importlib._bootstrap>", line 983, in _find_and_load
File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 668, in _load_unlocked
File "<frozen importlib._bootstrap>", line 638, in _load_backward_compatible
File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\site-packages\PySide6_init_.py", line 143, in <module>
_all_ = _find_all_qt_modules()
File "C:\Program Files (x86)\Microsoft Visual Studio\Shared\Python37_64\lib\site-packages\PySide6_init_.py", line 131, in _find_all_qt_modules
files = os.listdir(location)
FileNotFoundError: [WinError 3] The system cannot find the path specified: 'C:\\Users\\User\\Documents\\Workspace\\Projects\\MyProject\\build\\MyProject\\lib\\library.zip
PySide6'