The server exits on h350 init with a brief complaint in log:
ERROR:h350:h350_auth_lookup_fixup: pv_parse_format failed
ERROR:core:fix_actions: fixing failed (code=-2) at cfg line 524
CRITICAL:core:fix_expr: fix_actions error
ERROR:core:main: failed to fix configuration with err code -2
In this particular case the failure happens only with debug=2 being set for non-debug build of the server and modules.
I didn't dig too hard but noticed that in h350_auth_lookup_fixup the first argument in the call pv_parse_format(&s,&model) is not properly initialized.
The patch in the attachment fixes the issue.