Library bug

[WitherKD 25]

So Recently on Mine-Imator  I Was Animating A Tried To Go Through The Library(in bottom left corner) and couldn't scroll down through my library I then got this message

 

___________________________________________
############################################################################################
FATAL ERROR in
action number 1
of Draw Event
for object app:

REAL argument is unset
############################################################################################
--------------------------------------------------------------------------------------------
called from - gml_Script_tab_timeline (line 94)
called from - gml_Script_panel_draw_content (line 87)
called from - gml_Script_panel_draw (line 98)
called from - gml_Script_panel_area_draw (line 56)
called from - gml_Script_window_draw (line 14)
called from - gml_Script_app_event_draw (line 7)
called from - gml_Object_app_Draw_0 (line 0)

 

Any Body Know How To Fix This?

 

Even When I Had PreRelease 2 I didn't get  problems 

 

and even when I load non-rigs it does the same thing

Edited November 7, 2017 by WitherKD
forgot somthing