Difficult to adjust for small deviations

A little misalignment of the mold is not easily corrected.
It's too late to notice the deviation.
Let's start by noticing.

◆today's awareness
It doesn't  matter.
Don't worries.
It happens to the best of us.
The merchandise will probably be out of stock in less than one month.
A new facility is necessary to boost production.

Exactly. When you're on the inside , it can be hard to see what's going on clearly sometimes.