Tricky texture problem with Levels DX11

vvvv beta question
1

Hallo I have a strange behaviour with Levels on one texture there is a strange bar appearing with levels shader.

tricky texture
tricky texture901×331 21.2 KB

I m using beta 40.1 and dx11 pack.
thnak you 02_01 02 PERE tete seule RECROP.zip|attachment (20.8 KB)

2

I can’t download the attachment :(

3

arf, here it is dear cat :)
02_01 02 PERE tete seule RECROP.zip (20.8 KB)

4

Thank you Catweasel for this incredible not showing alpha thing :)