While creating a flow from blank or with a template which is using any trigger/action from onedrive connector, if you try to login using office 365 account you may receive the error:
Sorry, we can't sign you in here with your account.
Cause / Resolution
This error happens because onedrive is a cloud based storage for personal use, which can be accessed with an outlook.com or microsoft live account not with office 365 account. You can use "onedrive for business" connector if you want to use office 365 account.