Im in industry automatization- and its usually that the production is a linear problem- in a tree of linear problems. Meaning any station in the production may show problems after the start.

These come in 3 categorys- full stop (machine breaks/quality so bad production cant continue), solvable (machine can produce at reduced rate) - and hidden (quality problem shows down the line).

Hidden are the meanest problems, because you have to traverse back up the tree to the producer of the problem- solve the problem, which may result in new problems - migrating back down the production line.

Try to not see it as a binary problem of release- not release, but more of a very complex longterm graph traversing problem.