Major issues with OneDrive sync after migrating from S23 Ultra to S25 Ultra

[Apnomis]

In the past the transfer process from old phone to new phone has been flawless, but with the S25 I'm running into major issues. I've got sync on in the Gallery but it isn't syncing. The last photo to sync was on my old phone.

I've tried clearing cache/data but that has made things worse. When I go into the Onedrive app most of the photos are icons and when I click on them it says they've moved or I don't have permission to view them. On this Day is also not working and the Onedrive photo widget has disappeared with no option to re-add it. I've also noticed when I send a notification to log into my Microsoft account it goes to my old phone but not my new phone. I'm also not sure why I have multiple folders with the same name, like 2 camera folders. I've tried syncing both but it makes no difference.

I'm getting extremely frustrated and I can't find an answer. This is the first time I've been frustrated with the Smart Switch process, which is probably the main reason I've always stuck with Samsung in the past...

[ehasi]

phone settings 

[angry-user]

How did you unlink them?

 I've unlinked it from OneDrive but how the hell did you remove it from the gallery app?

 This sync is a bag of S**t

[Thomas André]

1. Open your Microsoft Account's Additional security options.

   1. Next to 

       Samsung Cloud, select Remove these permissions.

2. On your mobile device, go to Settings > Accounts and backup > Manage accounts.

   1. Scroll down and select your 

       Samsung account.

   2. Under Apps and services, select Linked accounts.

   3. Unlink your Microsoft account from the list of Linked accounts.