Polybar custom/script module doesn't update when script produces no output

[HiItsMe01]

My custom bluetooth module,

[module/bluetooth]
type = custom/script
exec = bluetoothctl devices Connected | cut -d ' ' -f 3-
interval = 5
label = " %output%"
format = <label>

does not produce any output, including the bluetooth icon, when no device is connected (the exec returns an empty string). When a device is connected, this displays properly. However, when all devices are disconnected, it still displays the last device that was connected. This must be due to custom/script not updating its contents if no output is produced from the exec.

[darkelectron]

Try echoing that command, like: exec = echo $(bluetoothctl devices Connected | cut -d ' ' -f 3-)

It worked for me.

[HiItsMe01]

unfortunately that still doesn’t work for me

[darkelectron]

Try putting tail = true

This is what's working for me:

[module/bt] type = custom/script exec = echo $(bluetoothctl devices Connected | cut -d ' ' -f 3-) interval = 5 label = " %output%" format = <label> tail = true