I can't make screenshots of this bug, because it would obviously look fake but....

This bug is real, to know how this bug happen:

 When you put the wooden button right next to load mode structure block

Then press the button to load structure, when the structure has too much stuff, too big, too complex, it was more likely make the button freeze and can't be pressed anymore

There you go, button freezes and can't be used forever, so as activation of the redstone dust, repeater, etc.

So basically, it forces you to break the button to stop the bug and put the button again (right next to load mode structure block)

Not sure what makes this bug happen, is it because the saved structure is too huge or too complex?