d1d9f60 created the issue

I just upgraded to Cyberduck 6.4.0.

In Get Info the S3 ACL Permissions box is completely blank for all files. It won't show owner credentials or All User credentials at all.

The drop down menu for adding permissions does not populate anything into the Grantee line. Just blank lines. I have restarted my Mac and Cyberduck with no change in behavior.

Hope I can backtrack to the 6.3.4 until this is fixed! Cyberduck is completely useless for S3 at this point without the ability to set ACL permissions.