1.) You did not select an arc factor of 90%. What you select is "friendly investment of 90%. You arc factor is always 92%. This was a bug in the previous version reducing your own arc bonus when using the 85% or 90% buttons.
2.) The real problem is that you have been misusing the “profit” column treating it as an “amount I still have to pay” column. This was a bad method even in the previous version because it only worked when the GB was safe at exactly 190%. If it was safe at 177.4% like in my example above you would have payed too few FP.
Instead you should look at the Costs column. Here is an example for sniping:
In my example I have payed 438 of 475 FP for a friendly investment of 190%, so there are 475 - 438 = 37FP left.
In the next main version (I dont have a release date yet but I guess around 2 weeks) I will include a tooltip on the blue cost columns that also show the 37FP.