Index: blender-2.93.3/source/blender/python/mathutils/mathutils.c =================================================================== --- blender-2.93.3.orig/source/blender/python/mathutils/mathutils.c +++ blender-2.93.3/source/blender/python/mathutils/mathutils.c @@ -95,7 +95,11 @@ Py_hash_t mathutils_array_hash(const flo x = 0x345678UL; i = 0; while (--len >= 0) { +#if PY_VERSION_HEX >= 0x30a0000 /* Version: 3.10. */ + y = _Py_HashDouble(NULL, (double)(array[i++])); +#else y = _Py_HashDouble((double)(array[i++])); +#endif if (y == -1) { return -1; }