I tried your save twice and both times it crashed the game back to my desktop.

Seconded. Won't load in my patchpreview version either. Maybe corrupted files? Alternatively, I wonder if this and my issue posted elsewhere about the Academy blocking trade routes has the same root...

yeah Academy always blocks my route when neutral with them (during the 20 turns where you wait to get a role). didn’t check if they work when allied (while you have a role)..

The-Cat-o-Nine-Tales wrote:

The save files do seem to be corrupted, as it crashes on attempts to load them.

I was able to work around that issue (you can load them if you first start a new game and load from there rather than the main menu), but I could not reproduce the bugged income of the trade companies.

EDIT: On the most recent internal build, I was able to load the save directly, and that reproduced the bug.

This appears, after some poking around, to be caused by the same bug that makes the Academy raid you for no particular reason, and the one that causes the Academy to block trade routes when neutral or allied. PARAdoxiBLE made a very useful bug report with the code in question that is causing this, as seen here:
https://www.games2gether.com/amplitude-studios/endless-space-2/forums/114-bug-reports/threads/34790-diplomaticrelationstates-of-the-academy-is-wired

I suspect when that code is fixed, this, my bug report, and several other bug reports will all be fixed.