Doesn't appear that the arrays are working in OpenSCAD version 2023.09.06

[deathbydragonfire]

It would be super cool to utilize some of the new features, especially faster rendering, but the arrays are missing in the newest version of openSCAD. This means underscores as well as adjusting individual sizes and offsets aren't working.

[deathbydragonfire]

Another note is that I am having issues getting things to render on 2021.01 now, not really sure why but it keeps crashing when rendering even with relatively simple fonts.

[charmaur]

At present I'm not planning on making any updates.

Not sure about your rendering issue I'm guessing that remnants of the newer version of OpenSCAD were left behind..?