Board Auto-Due Dates + List-Specific Fields Issue

[DJ]

Hi Trello Support,
On our Premium board, new cards in all lists auto-set due dates to exactly 6 days from creation (e.g., Jan 10 → Jan 16), but:
• No Butler rules (checked Rules/Scheduled/Due date commands - empty)
• No Power-Ups (disabled Card QR Code, empty list)
• No templates (checked/deleted)
• No extensions (incognito test same)
• No automation logs
• New boards clean, copies inherit issue
Additionally need list-specific custom fields (4 left lists → Production/Closed retain unique fields) in one board.
Screenshots attached. Board ID/link: [paste URL]. How to:
1. Stop auto-due dates?
2. List-specific fields visibility?
Thanks!

[Rishabh S]

Hi DJ 😊,

I hope you're doing well, and welcome to the community!

To help us investigate your issue more thoroughly, I've created a support request ticket on your behalf. I'll be reaching out to you through the ticket shortly to request a bit more information.

You should receive an email from us soon with further details. I hope that's alright with you!

Here’s the link to your support ticket for easy reference:
TRELLO-223961: Board Auto-Due Dates + List-Specific Fields IssueAtlassian Investigating

Thank you, and please let me know if you have any questions in the meantime!