0539

I copied the working block below the failing block.

The blocks are now:

1 copied from failing

2 working blocks

1 original failing block

1 working block

This is producing 4 characters of output, from 5 identical blocks. A working theory is that only the original failing block is failing, which can be tested by removing it. An alternative theory could be that only the last block is failing. A tertiary theory could be that a different block is failing each time, or that it the unexpected output is unrelated to failure of a block.

As I type this I will likely make errors from my perception issues.