rigctld dummy failure

[mdblack98]

a recent hamlib update killed my workflow.

To strip it down, I opened two windows, and the
commands are

rigctld -vvv

in the first window and

rigctl -m 2 -vvvv

in the second one. Used to work until few days ago but not after my last pull.

output window 1 (all OK)

[MacChef:Ham/@@MacSoftware/hamlib] chwu% rigctld -vvv
Recommend using --vfo switch for rigctld if client supports it
rigctl and netrigctl will automatically detect vfo mode
Opened rig model 1, ‚Dummy'

output window 2 (no longer working):

[MacChef:] chwu% rigctl -m 2 -vvvv
rigctl Hamlib 4.1git
Last commit was Sun Jan 10 20:39:39 2021 +0000 SHA=4571dc
Report bugs to hamlib-developer@lists.sourceforge.net

rig_init called
initrigs4_dummy: _init called
rig_register called
rig_register: rig_register (1)
rig_register called
rig_register: rig_register (2)
rig_register called
rig_register: rig_register (4)
rig_register called
rig_register: rig_register (5)
rig_register called
rig_register: rig_register (6)
rig_init: rig does not have rx_range!!
Unknown rig num 2, or initialization error.
Please check with --list option.

until two days ago, the output from window 2 was
(and this is OK)

[MacChef:] chwu% rigctl -m 2 -vvvv
rigctl Hamlib 4.1git
Last commit was Mon Dec 07 04:54:47 2020 +0000 SHA=15958c
Report bugs to hamlib-developer@lists.sourceforge.net

rig_init called
initrigs4_dummy: _init called
rig_register called
rig_register: rig_register (1)
rig_register called
rig_register: rig_register (2)
rig_register called
rig_register: rig_register (4)
rig_register called
rig_register: rig_register (5)
rig_register called
rig_register: rig_register (6)
rig_open called
port_open called
network_open called
network_open version 1.0
network_open: hoststr=127.0.0.1, portstr=4532
netrigctl_open called
netrigctl_transaction: called len=9
network_flush called
write_block called
netrigctl_open: vfo_mode=0
netrigctl_transaction: called len=12
network_flush called
write_block called
rig_get_vfo called
netrigctl_get_vfo called
netrigctl_transaction: called len=2
network_flush called
write_block called
rig_parse_vfo called
Opened rig model 2, 'NET rigctl'
Backend version: 20200503.0, Status: Stable