For example, when I use this set of hyperparameters:

DiscreteParameterRange('General/activation', values=["relu", "sigmoid"]),
UniformParameterRange('General/dropout_prob', min_value=0.1, max_value=0.2, step_size=0.1),
UniformIntegerParameterRange('General/n_epochs', min_value=5, max_value=15, step_size=5),

and set the total_max_jobs to 223=12, some combinations are not tried and some other are tried multiple times