Cut my resume from two pages to one and started getting callbacks the same week

Had been sending out the two-page version for a month, maybe two callbacks total. Ruthlessly cut it to one page, killed the objective statement, killed a project from 2019 nobody cared about, tightened every bullet to a result instead of a task. Same experience, same me. Four callbacks in the next eight days. No idea if it was actually the length or the timing, but I'm not going back to test it.