Temporary production workarounds have a habit of becoming permanent
When a same manufacturing concern gets discussed multiple times without fully becoming clearer, but because output still exists, noboday treats it like a real blocker yet. From the outside, the project still appears active and progressing. Internally, uncertainty keeps accumulating in small ways.
IMO a lot of production problems don't come from catastrophic failures. They come from organizations slowly adapting to unresolved constraints until the drift itself becomes invisible.