(errors/warnings) failed resuming functions after yield

[kepler471]

ERROR: Resumed function 'fade_in()' after yield, but class instance is gone. At script: res://Animations/Fade.gd:19
   At: modules/gdscript/gdscript_function.cpp:1882
ERROR: Resumed function 'fade_out()' after yield, but class instance is gone. At script: res://Animations/Fade.gd:35
   At: modules/gdscript/gdscript_function.cpp:1882
ERROR: Resumed function 'fade_out()' after yield, but class instance is gone. At script: res://Animations/Fade.gd:35
   At: modules/gdscript/gdscript_function.cpp:1882
ERROR: Resumed function 'fade_in()' after yield, but class instance is gone. At script: res://Animations/Fade.gd:19
   At: modules/gdscript/gdscript_function.cpp:1882
ERROR: Resumed function 'occilate()' after yield, but class instance is gone. At script: res://Animations/Fade.gd:52
   At: modules/gdscript/gdscript_function.cpp:1882
State Transition: Idle --> Air
ERROR: Resumed function 'occilate()' after yield, but class instance is gone. At script: res://Animations/Fade.gd:54
   At: modules/gdscript/gdscript_function.cpp:1882
ERROR: Resumed function 'occilate()' after yield, but class instance is gone. At script: res://Animations/Fade.gd:52
   At: modules/gdscript/gdscript_function.cpp:1882

and

ERROR: Resumed function 'set_invulnerable()' after yield, but class instance is gone. At script: res://player/player.gd:163
   At: modules/gdscript/gdscript_function.cpp:1882

[Jamesbarford]

Does this break the game?