1. Try to save a 64x64x64 structure using structure block (in infinite word, not flat)

2. Place the structure block somewhere else

3. Set it to load mode and put one of any button/pressure plate next to it to activate

4. Load the 64x64x64 structure that you saved previously (using the button/pressure plate)

5. Lag occurs

6. Then the button/pressure plate freezes (so as the redstone dust connected to it) and you can't use it unless you replace it