Form not auto-populating worksheet



When someone has submitted a form, they've received the confirmation that it has been submitted but it is not showing on the worksheet, so the follow-up workflows have therefore not been triggered. Could this just be delayed in reaching the worksheet, or is there an error I need to find either in the form or the worksheet?

I can see the question has been posed several times before, but the response has been to check the bottom of the sheet. I've done that and the submitted entry isn't showing (even checked filters).

Thanks for any advice :)