It is not a big deal. Welcome to our world... we have one of the best artillery, mine proof vehicles that are kings, IFVs, helicopter gunships, AAMs, stand off weapon systems which you have in your inventory. It is the nature of business regretfully.
As an african country and to have best mine proof vehicles was something that Detroit engineers caused severe indigestion when they came begging for our engineers to come over and tell them how to make one ... ehmmm.
Focus on getting Block 3 development as priority and fullfil local orders with time the sales will come. Look at Isreal with Kfir ... faced same issues and even with Lavi that was canned due to pressure from US as it would have given F-16 a bloody nose.
Keep your chin up friends, it is a great journey and it will get better.
My 2cents. Been there and know it. If you had sold the fighter and had it gone over to India via Sri Lanka... then what?