Have you checked the result of using it as 'used'?
Make
{Short quarter log} [remove] [patchwise] '+For core wood'
Into simply this to check the result?
{Short quarter log} '+For core wood'
I dropped it into a recipe and get this:
Might be an ordering problem given what you are doing.eg:
{Short quarter log} '+For core wood' [remove] [patchwise]
I think there may also be a third (3) option. Due to the hardcoded nature of the building menu items some 'special' things may apply.