Getting Out of band event level Critical for provider.... using SLAB

Topics: Semantic Logging Application Block
Mar 12, 2015 at 4:44 PM
Hi,
I'm seeing a high volume of these messages in the rolling file log

Out of band event level Critical for provider 6257cb0c-73a3-4d4e-b1d2-52ba3829123b on session Microsoft-SemanticLogging-Etw-RollingFlatFileSink. Message: MAEVNTPROBE:MA_ETWSESSION_RD0003FF586E2A_RD0003FF586E2A

I am seeing other logs coming through ok. Is there a known scenario that causes this?