C9800-40 redundancy issue

[JJJHL]

Two C9800-40
I'm trying to redundancy.

If the port on the switch to which the active unit is connected is shut down, it is normal for a failover to occur and a standby to occur.

But it goes into the removed state as if the rp was cut off and stops working altogether.

Of course, the ping doesn't go out either.

Are there any bugs?

If not, what's the problem?

Settings are fine.

[balaji.bandi]

how is your RP and SP port connected ? back to back or using any Layer 2 switch ?

what code runnning to see any bugs around that behaviour, not that i am aware