Python 3.11.0a6 (main, Mar  7 2022, 16:46:19) [MSC v.1929 64 bit (AMD64)]
on win32
Build Boost Python with Visual Studio 2022.
Linking my binding to lib file: boost_python311-vc143-mt-x64-1_78.lib
Running my binding with: boost_python311-vc143-mt-x64-1_78.dll

Upon loading the binding I get;

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
SystemError: type Boost.Python.enum has the Py_TPFLAGS_HAVE_GC flag but has
no traverse function

The binding runs without problems with Python 3.8-32 and 3.9-64.

Any ideas?
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