I was mining some stone in order to create stone tools, and while walking up against a diorite block with nothing underneath of it, I was put into a crawling state. I have nothing in my inventory that I could've placed to make me crawl. It's possible there may be an issue with collision detection.
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Thank you for your report!
We're actually already tracking this issue in MC-177970, so I resolved and linked this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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