We've fixed that bug with drag-n-drop WG Chips.
Experimental Build Available Now
We have released an experimental build with possible fix of that invincible-bug. You can switch for beta version named experimental and try to play. If invincible-bug still occurs in singleplayer, please report to us.
This experimental build does not affect servers yet. It is meant only to testing singleplayer.
WARNING: Don't use experimental build until you are completely fine with losing your game progress. Always create a new character and new world for playing on experimental build to avoid any loses (of your main characters and worlds).