Arf, sorry to hear that. The last update included a change in width and height of the blocks to make it persistent between levels.
It should be really easy to fix but I'm on quarantine without my VR/Dev computer.
Meanwhile, if you really want to play the next levels (which would be amazing!) you can change your save in the following directory : %APPDATA%\Godot\ you have to change your current level for other (the next run is "04-same" you also can use "09-last" to finish the game in a text editor)
Sorry for the bug. I'll fix it as soon as I can.
It's fine, thanks for the reply. Glad to know I can edit the save, I worked around it yesterday using Cheat Engine to move the blocks to complete the level, I just thought I'd highlight the issue in case other people run into it too. My sister and I have really enjoyed it so far, we think it could be a really great game to get the rest of our family into VR :)