Lost quality on tag when backup Ignition takes control

Hi, everybody!

I’ve got a redundancy Ignition pair (main + backup).

When I turn off main Ignition server, backup server takes control, but tags turn into ‘Uncertain’ quality.
In the image, you can see how tag quality changes. Obviusly, when the main Ignition service is working, the quality is ‘Good’.

Is there any configuration parameter y should consider in order to keep ‘Good Quality’. I have tried with a simulated Sine tag (Ignition Simulator Device) and with an external simulated Modbus signal.

Any ideas?

Thank you.