Starting on Sunday our CTR dropped by over 75% and having looked into it in detail it seems the drop is because near enough all text ad clicks delivered from desktops are being shaved.
Clicks appear for few minutes then disappear along with the related revenue.
Text ads for mobile and tablets do not seem to have this problem. Neither do image ads on desktop, tablet or mobile.
We still have nessie buttons.
Don't really understand why this is happening or why it only seems to be text ads on desktops (rather than all ads, or on all platforms) if we are being penalised for something.
Has anyone else had a similar experience? What did you do to resolve it? Or did it resolve itself after a while?