wrong normalmap display when load scene using pack file

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:bust_in_silhouette: Asked By 4ndik4w

if in godot engine editor. normalmap is correctly display in viewport.
this is a picture i take from the editor. using temporary sun with strength 1 (default).
picture take from editor
but when pack that scene and load as DLC using game master, the normalmap is looking weird.
this is a picture i take within gameplay. using gameplay sun with strength 1.5 (i increase it 0.5 for more look sunny day).
picture take from gameplay
but when i debug check normal scale value, the value is not change (in editor i set 1.5 and in gameplay still 1.5). so what going wrong here? can someone help me to solved it.

:bust_in_silhouette: Reply From: 4ndik4w

want to know why normal map not correctly display like above?.

click this link for the answer. ^_<