Sometimes this game will decide it doesn't want to listen to my controller seemingly at random. In this video with input display, I'm holding left on the straight piece, and it just stops for no apparent reason. Spamming left when I see it stuck doesn't help either.

I get why some things don't work, like quarter-circling from left/right to down will make the piece not drop, but I can't figure out what causes this. Help would be appreciated.