no, it doesn't fix.
Outlook simply doesn't sync the INBOX folder (it is empty in Outlook MAPI, but it's OK in Android EAS, in IMAP and in Webmail).
I tried to change PC and reconfigure everithing more than 5 times without fix it (even different Outlook versions...)
I tried to rebild the INBOX folder on server
I tried to reindex the user
I tried to disconnect / reconnect
I tried to resinc the folder with the resync folder Outlook command
I tried to made Outlook OFFLINE and then online
I tried a RESYNC USER PROTOCOL from the server
I tried to delete the SYNCHRONIZED DEVICE from the SmarterMail server to force a disconnection/reconnection
I tried to reconfigure Outlook as perSmarterTools guide
Nothing of that worked