Can't access listitems in Sharepoint list with Microsoft Graph leveraging System Managed Identity

Hi everyone.

I have an issue I can't seem to find a solution to.
I have a Logic app that is leveraging Microsoft Graph to get items from a SP list.

However, when i enable "Read items that were created by the user", the System-Managed Identity no longer can read the contents of the list (-Graph calls only return an empty array).

I want to use the Item-level permission "Read items that were created by the user", so when users add content to the list, they can only see their own entries.

The System-managed identity has been granted the "Sites.ReadWrite.All" permission.

Does anyone have any suggestions on how i can grant a system-managed identity access to all items within either a list, or on site level?