Just got the glitch again, here's some information:
I went to the main menu after my last game, went to the gallery to see I had two block types left, went back in to start a new run, only got my first new block or cursed row option at 30 lines
Ooooh thanks! I totally missed this glitch, I'm assuming at the end of a run it's screwed up the tracking on rows cleared so I'll get that fixed asap :D any name you'd like to go by in the Credits page when I add it? You deserve to be in the special thanks for catching that as I may have never caught it without you! :D