I used the latest version available (I downloaded it two days ago) from the main download page on both my laptop and pc, so it should be the same version running on both.
Viewing post in Rapid-Fire Releases and Me Being a Horrible Dev comments
Hey, I have been testing now on a couple different machines, some with built-in keyboards and some with USB-connecting keyboards, and for the life of me, I can't seem to recreate this error. Is there anything more you can tell me about your keyboard perhaps? I'm almost positive it's not anything to do with the OS, so I can only guess the game is reacting strangely to your specific keyboard.
I also tried looking up to see if this problem occurred for anyone else playing RPG Maker games, and I did find this forum post:
https://forums.rpgmakerweb.com/index.php?threads/player-keeps-moving-left.37434/
It recommends unplugging every single USB connected to your computer. Turning it off and back on. Plugging them back in. And then trying to open the game. It worked at least for the person here, so if it does turn out to be the same issue, it might work for you, too.