BlendSearch in UDF mode

[khosravym]

When I select the BlendSearch search algorithm, I consistently encounter the following warning, whereas it does not appear when using CFO:

You passed a space parameter to OptunaSearch that contained unresolved search space definitions. OptunaSearch should however be instantiated with fully configured search spaces only. To use Ray Tune's automatic search space conversion, pass the space definition as part of the param_space argument to tune.Tuner() instead.

[Programmer-RD-AI]

Union[ Dict[str, "OptunaDistribution"], List[Tuple], Callable[["OptunaTrial"], Optional[Dict[str, Any]]], ]

The above is the space parameter structure that is expected could you check with what you pass to BlendSearch?
and if possible send it...?