Advanced Boolean Toolkit
UI

Slice mode duplicates the target object and adds both the difference and intersection to each copy.
It also includes a gap feature, optionally adding a slightly enlarged difference object to create space.

This setting automatically adds the Triangle Modifier to the end of the modifier stack.
Turning it off prevents the Triangle Modifier from being added.
Also, if strange triangular displays appear on the object's mesh,
this feature may be interfering with Boolean operations,
so try turning it OFF.

This setting automatically adds the Triangle Modifier to the end of the modifier stack.
Turning it off prevents the Triangle Modifier from being added.
Also, if strange triangular displays appear on the object's mesh,
this feature may be interfering with Boolean operations,
so try turning it OFF.