Typeform powerup disabled but submissions still being added to list

So I was previously using the Typeform power up on one board. All was working fine and then I created a new board and enabled the power up for a different list and connected to a different form.

So just to confirm:

Board 1 connected to typeform via powerup and selected form A. Submissions land in list A.

Board 2 connected to typeform via powerup and selected form B. Submissions land in list B but submissions from form A were also landing in lis B...

No idea why it was happening. Tried renaming lists, connecting and disconnecting powerup until I just gave up and disabled the power up on both boards.

I am now using Zapier to send Typeform submissions to the correct boards.

But here is the problem. Submissions from Typeform A are still being sent to board 2, list B. Even though I'm no longer using the powerup...there is no longer a table just the attachment link to typeform.

Anyone any ideas why and how the Powerup could still be running even though it has been turned off!?

thanks