Creating a new RDP desktop via web fails in a multinode environment (ETS + ETSN nodes) with

"Error: Unexected Program Termination"

Logs report:

WARNING! Process '/bin/bash --norc -c exec -a - /bin/bash -c
'/usr/bin/xfreerdp /f /d:undefined /sec:rdp /v:undefined'' with pid
'43783/43783' finished with exit code 131 after 0,414 seconds.

As a temporary workaround, disable the manual selection of the node. To do that, on the main server (ETS), execute:

sudo /etc/NX/nxserver --ruleadd --class feature --type manual-node-selection --value no