Here is my situation. I created the following objects as System Administrator.
Object A - custom objects with only standard fields Object B - custom object with only a Master-Detail field to the Object A and the Sharing setting is set to Read/Write.
I have created Permission Set that gives read/write/delete/modify All permissions to Object A. I am creating a standard user and assign him that permission set. I am not using any profiles other than the Admin profile and I don't have any role hierarchy to the org.
From what I understand from the Salesforce documentation the permissions for the detail records are inherited from the master.
However when I am logged in as the standard user I cannot create/edit/delete any detail records.
Any help would be greatly appreciated.