I noticed that the oat.xml is missing some items in the stages list:
Here's Canola:
0 1 2 3
1 0 0 0 - invisible 1
0 1 0 0 - green small 2
1 1 0 0 - green small 2 3
0 0 1 0 - green small 3
1 0 1 0 - green middle 4
0 1 1 0 - green middle 2
1 1 1 0 - green big 5
0 0 0 1 - green big 2
1 0 0 1 - harvest ready 6
0 1 0 1 - dead
1 1 0 1 - harvested (cut)
Here's Oat:
0 - invisible
1 - green small
- green middle
2 - green big
3 - harvest ready
I also noticed it doesn't have the stage before the corresponding state.
<!-- 0 1 0 1 - dead -->
Don't know if this has anything to do with it not showing up. But so far that is the only one that is different from the others. Could this be what's causing it? Love your work by the way.