@trailfrenzy
Basically, there are relationships that can and cannot be connected.

A successful connection will be indicated by a line, but if the cards are too far apart, the connection may be lost.

Also, sometimes there is an issue where the lines are not displayed visually due to a save-load bug.
This is something I've put a lot of effort into fixing, but it's still a visual bug that can occur.

To fix it, hold down the 'T' key and click on the card to disconnect all connections from the card, then reconnect it.

hey!, does it show when something is connected? if so my stuff isn't connecting :(

It's funny, I saw your Mod posted on Discord and laughed that we're basically working on similar projects but yours goes deeper than mine. I added the Mod and tried to get the error to throw. I managed to get it to throw twice, but I couldn't identify a pattern. However, I do have some info that may be helpful. I posted it under discussions.