Hello,
Sorry to hear you are having issues. I see this issue, perhaps its compatibility issue on WB with older MS Paints. With this, from what I know, you will need to set WB to ignore it, do not skin it.
Also, I have forwarded your problem/question to Stardock Support Team for their assistance. Please keep an eye on this thread for any updates. We appreciate your feedback and patience.
Thank you,
Basj,
Stardock Community Assistant.