I've been testing out some logic and having a bit of an issue when I unlink them from things like rail dockers and a few other things the logic will still affect the blocks in question until the logic blocks in question are removed than replaced. Also I've found that removing the affected blocks the logic is linked to and replacing them doesn't get rid of the link to the zone the block was. Only removing the logic block itself will do so. I need to do a little more testing but so far that's what I've ran into.