Hi all, I'm using accountant view to file my second ct600 for my first period operating (c.13 months). Creating a new return doesn't show any workpapers. Help!

My accounting period runs until 30 June, however, as the business was incorporated 10 June 2024, my first CT600 only covers the first 12 months until 9 June 2025 and I need to file a second CT600 to cover the peirod in my first annual return. After successfully submitting my first CT600 in the accountant view of pro tax, I'm now trying to create a new return here. The dates don't auto populate, there are no workpapers, and it seems the system doesn't like my 'from' field entry of 10 June 2025 and highlights it red. Any ideas on how to raise the CT600 from 10 June 2025 to 30 June 2025 to cover the annual accounts reporting period?