aerender uses wrong font

Hi all.

I have a project that has multiple text layers, and the content of those layers is taken from a json file.

I use aerender to render that composition, but for some reason every time (or at least 9 out of 10) aerender "decides" to change the font of a glyph for a few frames.

So on every render I get some blinking characters that just look like those characters are rendered with a different for for a few frames.

I get a blinking effects, because they are not a different font for the entire duration of the layer, but something like 10 frames correct font, 3 frames wrong font etc.

This does not happen with the whole text layer, but rather one or a few characters.

This does not happen on same layers/characters on each render.

This does not happen on all layers, but rather on ~3-5 out of 20.

I use this expression to get the content of the text layers, because each layer has the same name as its value form the json file:

"eval("var src=" + footage("json.json").sourceText);

Thanks,

Andrei
src[0][name];"