"Could not fetch_hash 9 msgs: 17 BAD Command Argument Error. 11" from Office 365 source

Hi, first of all many thanks for this great piece of software!
I'm trying to copy from Office365 to Gmail, but I have an issue on source mailbox: on every folder i get

Could not fetch_hash xxx msgs: xxx BAD Command Argument Error. 11

I already tried --maxsize and --maxlinelength with no luck.
This is the debug log (trying to sync only 1 folder for debug)

Here is imapsync 1.998 on host ip-10-10-54-3, a linux system with 0.1/0.5 free GiB of RAM
with Perl 5.16.3 and Mail::IMAPClient 3.34
Transfer started at Sat Oct 10 00:48:34 2020

Command line used, run by /usr/bin/perl:
/root/imapsync --office1 ...  --synclabels --resynclabels 
...
found data between fetch headers: 16 OK FETCH completed.
Host1: parsing headers of folder [Archivio] took 0.181915044784546 s
Host1: getting flags idate and sizes of folder [Archivio]
Sending: 17 UID FETCH 7:13,15:16 (FLAGS INTERNALDATE RFC822.SIZE X-GM-LABELS)
Sent 70 bytes
Read: 	17 BAD Command Argument Error. 11
...
Host1: folder Archivio : Could not fetch_hash 9 msgs: 17 BAD Command Argument Error. 11
...
This imapsync is up to date. ( local 1.998 >= official 1.977 )( Use --noreleasecheck to avoid this release check. )
Homepage: https://imapsync.lamiral.info/
++++ Listing 1 errors encountered during the sync ( avoid this listing with --noerrorsdump ).
Err 1/1: Host1: folder Archivio : Could not fetch_hash 9 msgs: 17 BAD Command Argument Error. 11
The most frequent error is ERR_UNCLASSIFIED

Many many thanks
Michele