The game’s automated priority system fails to recognize valid plays available via existing on-board activated abilities after a spell resolves.

Normally, the game checks if a player has any possible actions after casting a spell. If no actions are available, it automatically passes priority to the opponent (unless Full Control is enabled). If a spell draws a card or generates mana, the game correctly holds priority because new actions become possible.

However, the system fails to check if the newly cast spell satisfies the costs or conditions of non-triggered/activated abilities already on the battlefield. The engine seems to only check for ETB (Enter the Battlefield) effects or other triggered abilities. If the new permanent enables a static or activated ability on the board (e.g., casting a creature that could immediately be tapped to pay for an existing artifact or creature's activated ability), the game automatically passes priority/ends the turn anyway.

This is a systemic issue occurring across multiple card and spell combinations.

I play on PC, you can work around the problem by using full control.