Translation Bezier & attachment

[Tirlititi]

Hi.

I tried to make a spell using attachments but I've a problem. The game doesn't want to recognize the Bezier interpolation in the translations. It just makes a linear translation instead.
However, WorldEdit shows me the model with Bezier translations so I guess there is no mistake in my model but maybe a trick to make Bezier efficient in-game.
I only got the problem in attachments and I didn't tried with Hermite yet.

Thanks for help.

PS. : I did a quick search with no results. Sorry if the problem has already been posted.

EDIT : found from what it comes : we have to put the animation's quality to high for Bezier translations in attachments.