I went through my collection of photos from online quilt auctions and found some sad situations.
Mostly planning problems
Although some quilt wrecks look like things were better a few decades ago before the fabric faded.
Here we have a planning problem. It's probably better to chop those hexagons into a rectangle rather than to try to follow them out to the edge.
To be fair here: I think some of the design problem is a blue fading completely to white.
And this old quilt was never meant to be shown on a line. It probably looked fine on a bed, when there weren't a lot of ducks in a row to contrast it to.
Sometimes you don't see the problem till you step back.
And in other situations it's hard to analyze just where things started to go wrong.