Created Job + Job Allocation Doesn't Add to Dispatch Board via API

I have created a job and then a job allocation but can't get it to add to the dispatch board via the API.

I believe the issue is related to the allocation window. I have created custom allocation windows for specific hours of the day: i.e. 12:00 to 13:30. But when I assign the allocation window to a job via the API or manually on the UI it does not appear in the dispatch board. (see screenshot below)

When I allocate a specific time manually via the UI (i.e. 12:00) the job does appear on the dispatch board.

Therefore, I need to figure out how to allocate the time via the API so it appears on the dispatch board. But I can't allocate specific hours via the API (only have the allocation windows for Urgent, Early Morning, During Business Hours, 1200 to 1330, etc. - none of them add directly to the dispatch board). Only the 7:00 AM, 7:30 AM, etc. add to the dispatch board but I can't access them via the API

Super urgent so any solutions would be appreciated please 🙏