Save to scene *.tscn can be broken
it make godot error "parse error" on load scene *.tscn file.
Error come from(in saved *.tscn file):
[sub_resource type="FutariMaterial" id=163] emission_shape = 3 emission_box_extents = Vector3( 2, 1, 2 ) flag_enable_wind = true flag_enable_attractor = true flag_enable_vortex = true flag_enable_floor = true gravity = Vector3( 0, -1, 0 ) angular_velocity = -nan.0
angular_velocity = -nan.0 this line
editing -nan.0 to any number make it load I do not know how this nan come to save, I edit FutariMaterial values in GUI editor, probably some /0 in save-function code of Futari addon, I did not check it to found C++ error, sorry
also thanks for this amazing addon!