rsync skipping non-regular file error happens when files are transferred using rsync due to missing symlinks or lack of recursive mode option.
This error is usually triggered when symlinks is missing or lack of a recursive mode option while transferring data.
To resolve this #error >> https://ibmimedia.com/blog/139/how-to-fix-rsync-skipping-non-regular-file-error
rsync progress
man rsync
rsync skipping #directory
skipping non-regular file #sftp
#rsync options
rsync --exclude
non regular files rsync
rsync -a symlink