Sorry, i couldn't find another place to report this.
I got an error log:
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ERROR in
action number 1
of Destroy Event
for object pBullet_player:
Variable oBullet_lasergun.dustSprite(100190, -2147483648) not set before reading it.
at gml_Object_pBullet_player_Destroy_0
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gml_Object_pBullet_player_Destroy_0 (line -1)
gml_Object_pBullet_player_Step_0 (line -1)