MSP360 Explorer for MacOS. Cannot connect using Access that works on Windows

I’m trying to access AmazonS3 on MSP360 Explorer for MacOS and I’m getting a message of Connection Failed. Check your Credentials. Upon clicking ‘Details >>>’ it just tells me Access Denied.
The access key and secret key work on Cloudberry for Windows so I don’t know what changes I need to make on Mac. Any ideas?

Hello,

This is definitely tied to the user policy attached to your account, could you please provide an example of the one you are using.