Hello again! I believe I have corrected* both issues. I stupidly left out two commands which left concomitant passages invisible, so your chosen device was decidedly not the culprit! Thank you kindly for alerting me to this problem; if you encounter any others, you would be doing me a service to highlight them.
As for the text color, that has been updated, too! Upon completing a playthrough, your selected color will no longer revert to red.
I appreciate your kind words, and hope this obstacle did not detract too greatly from your overall experience.
Have a wonderful day!
-Lars