vertical stripe error

[sesangsokuro]

When indexed color and transparent background are used together. If the program saves it as read, it will have vertical stripes where it should be on a transparent background.

The error file and source are enclosed.

Class1.zip

[sesangsokuro]

Because it is a purchased resource, I drew a brown line in consideration of the copyright of the person who drew it. The problem is the red stripe.