I can't copy (STRG+C) Paste (STRG+SHIFT+V) some PNG's correctly in 1.98.
They are displayed wrong, like you can see here:
On the left side the original image with the selected cut-out and on the right side the image pasted with STRG+SHIFT+V

- it's black/white
- a strange vertical line
- a strange dotted line bottom
Any suggestions?