(sorry for the weird screen, my phone screen is in 1080x2400, which makes the video result a bit scuffed)
first of all, thank you for letting me know of the bug you're experiencing.
I've tried to look into it and test the browser version of the game using my own phone and unfortunately I haven't found the bug that you got on your tablet.
My hypothesis would be that there's some code error/overlap happening. Or, the browser version can be laggy for some device(?) which makes the button unresponsive.
I'll try to fix it the best that I can. But, since I can't find the bug yet, I can't be 100% sure, but I'll keep trying.
If it helps, the title of the story (in your case should be 'freeroam') can be pressed to see the log/history of the passed story.
And may I ask you a question just to clarify. Does this bug only happen to the story choice button, or does it happen to other buttons like the continue button in the menu, or the stats button leading to the stat tab? or just any other button in general?