Putting 1 banner and 1 dye in loom crashes the game

Put in a few dye and a few banner into loom, removed the extra and was left with 1 banner and 1 dye in the loom then the game crashed. 

What I expected to happen was...:
banner to dye

What actually happened was...:
game crashed

Steps to Reproduce:
1. place loom
2. put in 1 dye (of any color, I tried purple and white) and 1 banner