Cannot access Sharepoint Document Library in Flow after using custom permissions, even though my account has Full Control

Good day.

I have a Power Automate flow that is reading and creating a new file to a sharepoint document library.

by default , the flow runs perfectly with site level permissions, and the account that im using to execute the sharepoint connectors is a member of the Site Owner group.

Now i need to have custom permissions on that document library , so members cannot access it, only owners ( full control ), and visitors ( Read only ). after enabling unique permissions in the library, i only removed the Members group. so now it is like this, with my account that has full control.

In my power automate flow, i edited the flow and in my sharepoint get files / create file actions, it can still lookup at that document library using my same account.

But the problem is when i run the flow, i am getting and error saying access is denied. even though my account has still full control on the library.

i tried recreating this action and another create file action, i still get the error after running.

but when i remove unique permissions in the library, my workflow runs successfully.

I am confused why this happens.

Can anyone help me how to go around with this issue? cause i believe it shouldn't behave this way since my account has Full Control on the document library.

Hoping for anyone's help.

Thank you very much.

But after i

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