The official Twitter account for the World Trigger manga has announced that the series will be taking the month off and return in the July 2022 issue of Jump SQ., which is scheduled to be released on June 3, 2022. The tweet explained that the hiatus is due to the “poor physical condition” of manga creator Daisuke Ashihara but didn’t go into further details. The manga also took breaks in the March 2021, May 2021, November 2021, and February 2022 issues.
Ashihara debuted World Trigger in Weekly Shonen Jump magazine in 2013. The manga went on hiatus in November 2016 due to Ashihara’s poor physical health, and returned in the magazine in October 2018 for five issues before moving to Shueisha’s Jump SQ. magazine in December 2018. VIZ Media is publishing the manga in English.
Source: Crunchyroll