Jean-Francois, we tried to reproduce your problem on SID with libssh 0.8.1-1 without success.
Could you please open an upstream bug at the following link ? https://gitlab.com/Remmina/Remmina/issues Thank you.
- Bug#906154: remmina: ssh tunnelling does not work any ... jfp
- Bug#906154: Works with libssh-4 0.8.0-1, does not... Jean-Francois Pirus
- Bug#906154: remmina: ssh tunnelling does not work... Matteo F. Vescovi
- Bug#906154: Custom ssh port is ignored. Jean-Francois Pirus
- Bug#906154: Custom ssh port is ignored. Giovanni Panozzo
