remove 9 patch artifacts [SOLVED]

I found same problem with the c3 plugin 9patch that was present in the C2:

when using a semi-transparent image it shows those lines:

is there a workarround?

Try changing other parameters - Seems, Edges, Fill

Thank you dop2000

as you said, needed to set seems to "exact" and not overlap.

you saved me a toon of headaches!!

thanks again!