Image problem...

Hello Guys!
I try to do a image from .alpha 0 to .alpha 1 in (5 secounds), but there is a problem: that doesn't work (with fadeOverTime(<time>))
Now I just tested it with a normal image (2d image [asset manager]), so I thought that the problem is on the image.
I just tested it (with the same script) with another image, which worked. The problem is now on the asset manager settings.
But I don't know what settings there is, as example that does work (material):

(opened with notepad)

Code:

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S  c        

           

       
  e‰( 
  P  D  P  s      c  2d screen_blood_01 screen_blood_01 colorMap

---

What I only can read here is the material name, the image name and the materialType is 2d.

Can someone say me what material settings I have to use?

Thank you!

assetmanager > blend type (alpha) > blend

That's it! Thank you serthy!