Hi Bret,
thanks for your answer.
I am aware of that, this KBA was created following my questions and an error in documentation.
But here, I have put dml_logging on user created tempdbs, not system tempdb. It has worked, I have sysmon reports with ML discards , but now, perhaps due to some config parameter , I can not get discards again, and when enabling diganostics , I get this message.
This msg is about tempdb , but tempdb is not not with option dml_logging minimal...
That's why I ask someone for an idea about this strange behaviour.
regards