When using Send Screen v2 with InterAction, you may notice that the entire list you are sending to is not loaded, depending on the size of the list.
This is done to increase efficiency and reduce the page load times of Send Screen v2.
If you send the email without clicking the 'load full list' button, the email will still send to the entire list.
You only need to use the 'Load full list' button if you want to inspect the contacts on the list, or search the list to check specific contacts.
For more information on Send screen V2, see the below article:
https://support.vutu.re/hc/en-us/articles/6995039097501-Email-Send-Screen-v2-for-InterAction