Hi @digiform,
Depending on the size of the folder you are trying to sync, odrive may “give-up” if it hits too many errors. You can usually run the recursive sync again to try to get the remaining items, but if it is a very large file and the remote storage is throwing frequent errors it could take several times.
To be sure that all placeholders are now “real” files, you can search the folder for .cloud extensions. If none show up then everything is synced.
If you continue to run into a situation where there are remaining .cloud files you can use a more advanced option to “force” the sync, regardless of the number of errors encountered. Take a look at this post for information on that: