Attached is picture of quilt called Kinabalu designed by Ginny Beyer, It was fun to do and I am pleased with how it turned out but, As I started to trim the first corner to put in the triangle piece that is fussy cut from the border fabric, I was so caught up in precise placement of the piece, I cut off the wrong $%^$## corner.( as you see from the pic it needs to be in the dark area. )I set it aside for a while, and when I talked to my friend that is teaching me, did I mention I am fairly new. She said always sew the piece on before trimming the underneath piece. Well the other 15 blocks went great. My next step was( I am sure now) wrong, I fixed the error with fusible web and then zigzaged to prevent fraying. It doesn't show much at all, but I think now, I should have made a new block. Did I ruin the whole thing?