BIG IQ CM - DSC Discovery Error

Hi,

We are having 2 BIG IQs that are operating in HA mode. When I try to discover the DSC for the BIG IP devices that have been added, i'm unable to do that. I'm getting error as below:

Refresh BIG-IP clusters list failed. unable to refresh current config: java.lang.IllegalStateException: Failed to start task on xxxxxxxxxxxx: java.lang.IllegalStateException: An active configuration request is in progress for device . This request cannot be processed until the active request completes. Please try again in a few minutes.

I even rebooted the BIG IQ, to clear it of any active request, but still I'm getting the same error.