If this is happening for items in the root folder, check to make sure the sync option is set. Link to example Items created in cloud don't auto sync locally - #11 by kyle
Did you add this account as new so it reuploaded or as existing so you ended up with yellow check mark icons indicating ‘local-to-cloud file matching’ but not reuploaded? I think prior to 3.0.23 for me on windows, new items in folders with yellow check marks weren’t auto syncing but items in folders with green ones were.
Perhaps Insync team can clarify but I’m pretty sure yellow check marks are not indicating partial sync in the sense that some items contained aren’t synced. As I said above, pretty sure the yellow means that Insync has associated the local file with the cloud file but the file was not reuploaded, aka ‘local-to-cloud file matching’