I have the same issue as the below topic, where all my folder are set to 755 but I am unable to run updates or upload new media due to folder permissions. Once I set it to 775, the problem is resolved.
https://wordpress.org/support/topic/folder-uploads-permission-to-775/
However, in this thread above it mentioned to "set ownership of your file tree php user id". In my namesco account I have the below FTP accounts:
example.com
example.com_thisisme
The website was uploaded using the example.com_admin
The owner/group of the files and folders for the website are:
example.com_thisisme example.com
If I am able to access the files and folders with the example.com
and reset the permissions to 755. Will this "set ownership of your file tree php user id" and also fix the problem?