Not gonna lie when I saw this I was mad confused, I waited 10 minutes while doing other things to wait for something to load.
Before I asked myself "Before I tell them it doesn't work have I tried moving?" which seemed wild at the time but a possibility I hadn't explored; so my ADHD self couldn't help the temptation.
And turns out my brain was guiding me on the enlightening path of discovery. So I'd definitely add a one-shot control scheme somewhere just so people don't turn off after a few minutes.
But after a few blocks I had a square dug out and then I could no longer dig so I'm not too sure what to do from there.