Hello!
Thank you for making a bug report!
Shining Neos Wingman is a card that has recently been brought into Beta card status.
I do believe that you should be able to fusion summon it from what I can see.
In the future, please include a replay code so that we can see the steps that were taken to create the scenario you experienced.
I will bump this up to the scripting team so that they can take a second look at this.
Once again, thank you for helping make omega be the best it can be.