deploy error message "policy has been altered since, retry deployment"

[jperez netics]

we have three pairs of FTD 4100 series managed by an FMC 1600, yesterday we got an error on one of the FTD that says:

• Policy "policy name" has been altered since "timestamp". Retry deployment 

we didn't deployed anything on this particular device.

Despite the self explanatory message, i couldn't find any documentation or reference to this message and what exactly it means.

if anyone knows what this message means or has a link to a documentation that explain it, i'll be very grateful

[balaji.bandi]

I know some of the mesages we did not find correct answer, what FTD version and FMC version running.

check what is deployed and with more information as below troubleshooting guide :

https://www.cisco.com/c/en/us/support/docs/security/firepower-ngfw-virtual/215258-troubleshooting-firepower-threat-defense.html

[jperez netics · Accepted solution]

i've just found the answer in the link you sent, under the "common failure messages" section

https://www.cisco.com/c/en/us/support/docs/security/firepower-ngfw-virtual/215258-troubleshooting-firepower-threat-defense.html#anc20

This error is shown If any policy/object is altered for the concerned  device in the deployment job, after user triggers deploy and before CSM and domain snapshots are created.  A redeploy fixes this issue.

thank you