First, you need to be aware of which connector you are using. For example 'When a new email arrives (V2)' is for Outlook.com and 'When a new email arrives (V3)' is for Office 365 Outlook. Those are two different mail systems with different addresses. Make sure you are using the trigger that watches the right mailbox.
Similarly, there are two OneDrive connectors. OneDrive and OneDrive for Business. OneDrive for Business will use your work account and OneDrive will use your Microsoft account. Make sure you are using the action from the correct connector.
