Hi. I’m away from the computer at the moment but the image just comes through the process with no change showing. Varying text size and position yields no difference. But drawing a square will appear on the same coordinates the text can be specified to render at. So I know position info is ok. I’ve also tried using the multiple actions option and the text tool won’t render with that either. I’m using a local install rather than the cloud for n8n.
Try to set the different fonts explicitly. It looks like the fonts are not available or incompatible so you can try some default fonts like below. Let me know if it solved your problem.