Ayakashi Triangle TV anime’s official website states that the delay is due to the spread of COVID-19 causing issues with the production of the series.
The wave of COVID-19 anime delays continues today with the announcement of the Ayakashi Triangle TV anime adaptation going on hiatus after the airing of episode four on January 30.
The official Twitter account and website for the series will reveal when the fifth episode is scheduled to air when it has been decided.