When listing responses, it always return the same results, no matter what the after parameter is:
client.responses.list({
uid: 'LOJytd',
page_size: 25,
after: '8f2794e1b3842d500430a6d8b412059a'
})
or
client.responses.list({
uid: 'LOJytd',
page_size: 25
})
It even returns the same list when the parameter after is not a real token.