If the asset ID is mX/3+2P2hssneRo9HsSjhZYrHL/kD+at+vnymNcBRKA= then it's probably just spam asset, you can hide assets when you click on the Gear icon.
Ok, looks like thats what that is.
I had a lot of blackbytes on the previous wallet when it was on another PC. I can't seem to get those to show anymore. Bummer.