C'thun log error

Hey guys…

I’m normally the logger in my guild raid.
Since AQ40 launched I’ve been having issues with one specific boss - C’thun.
For some reason I get an error (yes, its dumb, I didnt get the error code, we were rushing) - that just stops my logs on C’thun. Its two clears now where we haven’t gotten a “full clear” nor our C’thun kill logged.

Has anyone else had similar issues on C’thun, any ideas how to prevent it? I’m all ears.
Before you ask, I didnt reload midfight, I didnt get thrown in the stomach, I didnt disconnect on the way - I see no reason I get the errors.

Regards,
Killme.

What error?