CustomSanity Checks Nuke

Hi Folks,

have set up a sanity check file for nuke for our studio needs , it works as expected,
except when the nuke script has a ShotGridQuickReview node,

the custom sanity check that we have does not look at any other nodes except for write nodes ,
so trying to understand why this would by pass the custom sanity checks file , when the script has a
ShotGridQuickReview node in it , has anyone come across this ?

any ideas , insight would be useful

Thanks in advance