I am failing to sync my website to S3 – I have set up a bucket according to the Publii instructions (I am also fairly familiar with AWS).
If I test the connection it reports as OK, but when I sync, no files are copied. The progress bar is updating, saying that X of 39 operations are done. At the end I get a message saying to check a log file, but where can I check that? However, at the end of the upload process, there is nothing in the S3 bucket.