Alessio Jacona / Flickr cc

Facebook conceded Tuesday that it recently found and fixed a bug that "misattributed some clicks" on video carousel ads as link clicks. The bug occurred on mobile web browsers on smartphones, which drive significantly less traffic to Facebook than mobile app or desktop. Facebook says it will refund all impacted advertisers in full.

This is not an isolated incident. Per MarketingLand, this is the 10th time Facebook has conceded a measurement mistake to advertisers since September, when it revealed it had overestimated video metrics by up to 60% for two years.

Why it matters: The news comes just months after Facebook agreed to be audited by the de facto media watchdog, the Media Ratings Council (MRC), a move that other "walled garden" social platforms, most notably Twitter and Snapchat, have yet to make. The incident proves that although Facebook has taken many steps, including the audit, to ensure accurate measurement and reliability to its ad partners, it's nearly impossible to get it right 100% of the time at its scale.

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32 mins ago - Health

Florida reports another daily record for coronavirus deaths

Nurse practitioner Barbara Corral and a research assistant conduct a COVID-19 vaccination study on August 7 in Hollywood, Florida. Photo: Joe Raedle/Getty Images

Florida's health department on Tuesday reported 276 new coronavirus deaths, surpassing the state's record from July 31.

The big picture: The state also recorded over 5,800 new cases — on the low side for a state that is one of the domestic epicenters for the virus.

Updated 1 hour ago - Politics & Policy

Coronavirus dashboard

Illustration: Annelise Capossela/Axios

  1. Global: Total confirmed cases as of 11:30 a.m. ET: 20,126,452 — Total deaths: 737,285 — Total recoveries: 12,380,410Map.
  2. U.S.: Total confirmed cases as of 11:30 a.m. ET: 5,098,452 — Total deaths: 163,533 — Total recoveries: 1,670,755 — Total tests: 62,513,174Map.
  3. States: State testing plans fall short of demand — National Governors Association's bipartisan leaders express concern over Trump's unemployment order.
  4. Axios-Ipsos poll: 1 in 2 has a personal connection to COVID-19.
  5. Business: Moderna reveals it may not hold patent rights for vaccine.
  6. World: New Zealand reports first local cases for 102 days — Why you should be skeptical of Russia's vaccine claims.

Exclusive: Facebook cracks down on political content disguised as local news

Illustration: Eniola Odetunde/Axios

Facebook is rolling out a new policy that will prevent U.S. news publishers with "direct, meaningful ties" to political groups from claiming the news exemption within its political ads authorization process, executives tell Axios.

Why it matters: Since the 2016 election, reporters and researchers have uncovered over 1,200 instances in which political groups use websites disguised as local news outlets to push their point of view to Americans.