Cipher Suite error

It might be helpful to verify that the intention is to support TLS 1.2 and TLS 1.3 ciphers (or just TLS 1.3). The top three in your list are explicitly TLS 1.3. The following literal cipher string will produce exactly what's in your list:

tmm --clientciphers '!DTLSv1_2:TLS13-AES256-GCM-SHA384:TLS13-AES128-GCM-SHA256:TLS13-CHACHA20-POLY1305-SHA256:ECDHE-ECDSA-CHACHA20-POLY1305-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256;ECDHE-ECDSA-AES256-GCM-SHA384'

SUITE                                  PROT
TLS13-AES256-GCM-SHA384                TLS1.3
TLS13-AES128-GCM-SHA256                TLS1.3
TLS13-CHACHA20-POLY1305-SHA256         TLS1.3
ECDHE-ECDSA-CHACHA20-POLY1305-SHA256   TLS1.2
ECDHE-ECDSA-AES128-GCM-SHA256          TLS1.2
ECDHE-ECDSA-AES256-GCM-SHA384          TLS1.2