Trouble Adding New Trade Routes

[AcademyPilot]

I have recently been messing around with the maps in Thrawn's Revenge 3.2, adding new planets and the trade routes linking these planets. In particular, I'm editing the Progressive KnownMedium Empire file and whilst this has worked fine for the most part I have encountered an interesting issue where I cannot have more then 385 trade routes at the same time. It works fine with 385, I can establish routes between any planets (at least all that I have tried) by either referencing an existing trade route or adding my own. But as soon as you go above 385, no trade routes appear in the game. Everything else appears to work fine just everyone is stuck where they are. It doesn't seem to matter what trade routes they are so I don't think I've made an error creating one. I'm not sure if there is some maximum stated somewhere I can't find or if its dependant on some other factor.

Thanks in advance for your help, love what you guys are doing with this mod!