Well, some people got what I meant and carried the ball and others missed my point.
In analog film making, it is not enough to have the formula. It takes a lot of work to re-create a given film. If some of the chemicals are "banned", then it is a job of the chemist to create a work-around chemistry that solves the problem. We have done that more than once at Kodak.
If you make a product that works for years (SX-70 for example), stop making it, start again and it does not work the same way, then you have a problem. Having to teach your customers how to work around this problem is not an option IMHO. It is a failed attempt at that product. It does not meet release specifications. If you sell it, then your customers become alpha testers or beta testers at best, or unhappy people at worst.
We have had that at EK as well and have worked out the problems before any customer ever saw the product.
If a defect only shows up in the field, it means that you yourself did not do adequate field testing. If prints go bad after one year due to failed seals, you did not have release specs and tests up to this task!
IMHO, from most of the results shown, it is not a product yet, and should not be sold yet.