Map overlay has Porblems

When I leave maps sometimes but not always. my tab overlay map will be all corrupted its like a visual bug or something. I thought it might have been my graphics driver but it hadn't happened until the latest patch.
I will try to attach a photo.https://cdn.discordapp.com/attachments/560319560897527814/1167903104495272147/image.png?ex=654fd186&is=653d5c86&hm=dcf7d7d91946fa62457244302615c4520c3a2ed575d1ef85bfd52c56cf73617f&