Fix/Alternative to realtime csg?

I wanted to use realtime CSG for giving someone a spell to manipulate the map in real time, however due to roblox’s clumsy union collision, this happens: https://streamable.com/lumned
Is there any solutions/alternatives to get past this? Thanks.

Make sure you have CanCollide to set to false.

yea was already set, cancollide or not theres no difference