Advertisers on Meta Platforms, including Facebook and Instagram, have reported significant issues with the company's advertising systems in recent months, leading to higher costs for ad campaigns, poorer returns, and decreased sales, with no formal explanation from Meta. Despite these challenges, Facebook Blue's usage is at its highest in four years, according to $META stock analysts. The glitches, attributed to Meta's glitchy automated ad system, have caused ad buyers to complain of performance issues. The cost per 1,000 ad impressions and cost per click have both increased, prompting speculation about marketers potentially seeking alternatives.