Spot the un- deliberate mistake. I wondered what happened when I though I couldn't find a square, re cut one and had a nine patch left over.
This is the offending block.
Sorry about Merys leg sticking out in the corner but its the same old story of lay a quilt down and she takes ownership.
I'm decided to leave it for tonight and start a fresh with un- stitching and remaking the offending block in the morning.
Motto- don't start stitching in the evening when your mind is in grandchildren over load.