ExtendedScript - Changing the Mogrt title makes it blank

I am trying to change the text content of a Mogrt file using ExtendedScript but whenever I execute the code below the text becomes blank, and the Mogrt name on the video track resets to "Graphic". It's like everything's been reset to default.

var sequence = app.project.activeSequence;
var videoTrack = sequence.videoTracks[0];
var mogrt = videoTrack.clips[0];

mogrt.components[3].properties[0].setValue('test', 1)

The Mogrt I'm using is the Basic Title one found in the Essential Graphics tab, alternatively I used the type tool as well and the same happens in both cases.

Running on Photoshop 23.4.0.