I did a bit of testing, and it only happens with the build not the unity project. It only happens on another playthrough when you already have triggered the text in your last playthrough (except the intro). Either my messy code interfaced with some part of Unity's Text Mesh Pro system I didn't even know existed and accessed something outside my project, or Unity's text mesh pro system has a bug, likely due to the too large font I already sized down for the larger final version I'm making. PS if you want to see that final version, follow me.