If a derived reward / Surprise set is saved the toggle for "Conditional Gifting" does not work.
This is the intended functionality of the configuration setup. In conditional gifting, conditions can be defined using Segments and Qualification Criteria.
To scroll down to the derived reward settings:
As there is a differnce with the tables which are created if surprise sets are selected as shown below:
Note: If you are selecting the surprise sets then the conditional gifting toggle needs to be OFF.
If conditional gifting configurations need to be done then toggle needs to be turned ON and it will appear as Green in color once the toggle is ON.