How remove this weird lines from images?

Help and Feedback Art Design Support
#1

image

(Red lines to prevent some people from stealing image)

Hello. I’m making game. For now, I stuck with 1 problem - my score meter, which consists of sprite-sheet images, have weird black lines at connections between them. IDK how I can remove them, so, can someone say me, why this lines appeared, if they wasn’t in original image?

The only thing which works for now - enabling “Pixelated” Resample mode, but result… is bad:
image

#2

After a lot of time, I fixed issue by myself:

image
image273×551 81.2 KB

The problem was in Transparent pixel colors and Small gap between 2 images.

If someone reads this:
IF YOU WANT REMOVE BLACK / WHITE OUTLINE FROM IMAGE, THEN RECOLOR TRANSPARENT PIXELS NEAR THEM TO WANTED COLOR