UPDATE 2024-08-23: With the full release of version 69 this issue should be resolved. Thank you again for your patience. 

We are aware of an issue that prevents some players on Android 8.0 or lower from viewing Mystic Vision ads.

We are currently investigating this with our 3rd party partner and hope to implement a fix for all players.

We thank you for your understanding and our apologies for the inconvenience.