A successful install doesn't mean it works. Here is how to check:
Most Magic Bullet modules modify /vendor/lib64/camera/. This is a minefield. magic bullet magisk module install
Connect your Android phone to your PC via USB, or download directly via Chrome. A successful install doesn't mean it works
Assuming you have downloaded MagicBullet_GCam_8.4_v4.zip (or similar): magic bullet magisk module install