Are your other sideloaded games giving you trouble ? I haven't had any trouble with it and don't think it's the game apk.
no, all others are fine. Including onecast, which was loaded after this.
What is onecast ? Try loading it from itch after downloading into your pc and drag into the sidequest app.
That is the process I used. Onecast is another sideload app. It allows you to play your xbox on the quest.
Do you know Jesus God's Son as your Lord and Savior ?