When breaking a block in Survival, then switching to any other game mode (where there should be no block-breaking animation) before you finish breaking the block, you can still play the block-breaking animation. The animation's state will persist when the block is broken and will loop upon repeating. This only works if you use the same item you were breaking with.
Video demonstrating: (file size too big)
Google Drive
Linked issues
Comments


This ticket may duplicate MC-19676.
Thank you for your report!
We're tracking this issue in MC-19676 and MC-46766, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main tickets it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support (Technical Issues) – 📧 Microsoft Support (Account Issues)
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
can confirm in 1.21.4 and 25w04a