[Urgent]Crash when enchanting artifact

Tried enchanting a pair of boots with Radiant whateveritscalled that gives 50% increased luck to all creatures, got the following crash:

############################################################################################
FATAL ERROR in
action number 1
of Key Press Event for E-key Key
for object obj_enchenchant2:

Array index must be +'ve
at gml_Script_scr_GetMaterialRarity
############################################################################################

stack frame is
gml_Script_scr_GetMaterialRarity (line 0)
gml_Script_scr_ArtifactHasLegendaryProperty
gml_Object_obj_enchenchant2_KeyPress_69

Edit:
This error seems to occur any time I try to enchant any enchant on any artifact, making teambuilding a hassle.

certainly not just you this is happening to!

Fixed, restart Steam to receive the update.