Add new connections without removing any old ones in Point Graph

I have a point graph in which the nodes are moving around, and sometimes they move out of range from each other and the connections are broken. Even though they are temporarily out of range, the path is still valid and the AI agent is programmed to wait to move until the nodes are within range. I want to modify the connection assignment system so that any connection made between two nodes won’t be cleared when rescanning the graph. Because currently, rescanning the graph will often result in no valid path being found for a few seconds, and the AI doesn’t know what to do.

Any thoughts or help would be much appreciated!