The Swish icon is invisible in checkout. The path to Swish icon is right and file permissions are correct.
Perhaps a bug!?
Perhaps the image is invalid. Try replacing it with another and empty thumbnail cache Under Admin -> Settings
I have tried what you suggest and it does not work.
My mistake, change to images/payment/swish.png. I forgot it appends the path to the platform root.
Haha, I should have noticed it myself... The icon is now visible :D.  Thanks