Raka Santuary does not recognize when you control a blue permanent and a white permanent.
Can confirm that Raka Sanctuary does not recognize when you control a white and blue permanent
It sounds like you may need some more troubleshooting advice, please submit at: https://mtgo-support.wizards.com/hc/en-us/requests/new and select 'Technical Troubleshooting'.
[Deleted User] commented
I had Raka Santuary in play with a blue and white permanent and it was only shooting creatures for 1 instead of 3