Burn subtitles on encrypted DCP

[AQR10]

Hello,

I want to burn the subtitles that I just made into the image of a DCP that a client just sent me. The problem is that the DCP is encrypted, so in DCP-o-matic I can only see the subs running normally but I don't have the image! Its just a black screen. What can I do? If I export it like this and then ingest the KDM on a projector will it work or would it be just a black image with subs for 2 hours? Please help

[AQR10]

UPDATE: I received a KDM from the lab but now I have the following error message:

This KDM was not made for DCP-o-matic's decryption certificate.

What can I tell the lab?

Thank you

[carl]

You need to go to the Keys tab of Preferences, click "Export KDM decryption leaf certificate", send the lab that file and then ask them to make you a new KDM.