CARA Script for Write Assignment is not taking C-1

Hi,

I want to write C-1 chemical shifts from the HNCO spectrum to export my assignment in BMRB format. When I am using WriteAssignment.lua script and asking for triple resonance it is not taking the C-1 assignment for Carbonyl.

Could anyone please let me know how can I include C-1 assignment also in the BMRB format?

Thanks.