TM1640 Matrix + ArrayBuffer first column of letter does not appear in scrolling text

It looks like the drawString does not draw the char if it is on the boarder...

This could be possible - there is some code now which tries to clip offscreen chars to improve rendering speed.

Do you have a really simple example where this fails? For example if you run this code in the IDE:

var g = Graphics.createArrayBuffer(32,8,1);
g.clear();
g.setFont("4x6");
g.drawString("ABCDEFG",0,0);
g.dump();

You should see ABCDEFG in an image in the terminal... But maybe some other font/X/Y can cause it not to render the first characters properly?