inkycatz Lv 1 December 12, 2016 Popped this over to the team, we'll see if they have some ideas on it. :) Thanks for the report!
Bruno Kestemont Lv 1 December 14, 2016 Tip against any shake crash (shake crashes also reported in symmetric puzzles, see here The following recipe does one "hand" shake that doesn't crash: Quick Shake Algorithm It has been implemented in some recipes listed here, explaining why these recipes less often crash.