Okay now to my sad problem. I used the console command to give myself some cash while I play with some higher level AI's (I like to see what they do and I have just been tinkering with them mainly, haven't finished a game yet).
It seems there is some kind of cap on how much money the AI thinks you should have, regardless of the amount you actually have. I had 90,000 credits. I tried to make a deal with the Thalens for a complete purchase (NOT money per turn) of approximately 26,000 credits.
The AI insisted my coffers didn't have sufficient cash for the amount I had entered. After double checking that I had NOT entered payment over time, it still gave the error.
After trial and error I could only get the AI to accept amounts under 5,000 credits. So, it would take a payment, but only a very small payment.
Unsure if this is intended, an error due to using the console now (which had not been happening before), or just exactly what is going on.
Side note the Thalen AI was set to Godlike.