White IN Fish

Here we can find white line(horizontal) in HongKong Fish ATM. Because the wave(heavy blue) printed on the 'white line', so we can be sure the issue caused by printing slight blue on white paper as backgrond.
And there is heavy line under the white line, between white line and heavy blue line, the blue is a litter stronger than original background.

Legend Image.

All the prblems happend on the same postion, see above ATMs.