Browser Intrusion Prevention is malfunctioning error

Hello,

We have found that almost all our machine connected today(about 4000machines) recieved this error:

"Browser Intrusion Prevention is malfunctioning. Browser type: Internet Explorer.Try to update the signatures Browser path: C:\Program Files\Internet Explorer\iexplore.exe" 

It was happened few minutes after new virus definition has been published: "New virus definition file loaded. Version: 150526020."

I think, cause of this is mentioned revision of virus definition. Can you please verify this and confirm. If so, when will you release new virus definition not causing this error?

best regards

Szymon Talaska