Since the last update Some sites have Health Status saying Needs Revalidation

Hi,

Since the last update of the plugin "Domain Mapping", I've got some sites saying "Needs Revalidation" or "Invalid".

I've tried to rollback to previous release but it still doens't work !

Ps : I use W3TC but I have Purged the cache multiple times. No effect on the problem.

Ps2 : I use that plugin since a year => DNS is correctly configured.

Do I need to purge transients data ?

Regards,
Didier