A firmware update is behind recent reports that some Hue Bridge Pro smart hubs are no longer working, Ars Technica has confirmed.

In late June, there were reports of some Hue Bridge Pro devices not working properly after installing a firmware update. Philips released firmware version 2071353020 in early June, saying that it included “several small changes” to make Hue Bridge Pros work “better.” But some customers had a different experience: Their devices stopped responding and displayed a red LED.

A Reddit user going by the name statelymachine is one of the people online who reported that the update “bricked” their device.

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In some parts of the US, up to 30 percent of people may carry the antibody behind a red meat allergy spurred by tick bites, far exceeding the estimated number of people who actually have the allergy, according a study published in Morbidity and Mortality Weekly Report.

The findings suggest far more Americans than previously thought may be at risk of the allergy, which can make having a hamburger for dinner a potentially life-threatening choice. The Centers for Disease Control and Prevention has previously estimated that only 0.14 percent of the US population (up to 450,000 people) has the allergy. But the study also highlights how little we understand about this unique disease—and the challenges of accurately diagnosing it.

The study surveyed blood donations for the disease's key antibody, which is in a class dubbed IgE and specifically attacks a double-sugar molecule called galactose-α-1,3-galactose, also known as alpha-gal. This disaccharide is found decorating the cells of nonprimate mammals, including cows and pigs, but it's also released in the saliva of ticks, particularly the lone star tick (Amblyomma americanum). People bitten by ticks can develop IgE antibodies against alpha-gal, which can sometimes trigger an allergic response to eating red meat as well as other animal products, such as dairy and gelatin.

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