Also got a lot of erros in console but no crashes:
-Can't add child 'Area2D' to 'EnemyNode', alread has a parent 'EnemyNode'
-Condition "p_elem->_root" is true
-1 RID allocations of type 'N5GLES37TextureE' were leaked at exit
Texture with GL ID of 15: leaked 5460 bytes.