Over three weeks ago, rumors from multiple sources rocked the tech world and made it seem that Apple would almost certainly purchase headphone maker Beats Electronics for some $3.2 billion. But since then, there’s been nary a peep from Apple. Of course, the deal was only in “advanced stages” according to those early reports, and it seems something may be causing negotiations to drag on longer than expected. Billboard has spoken with multiple sources close to the discussions who’ve provided some details on what may be causing the delay.