Hey, I had this problem to but managed to fix it this way: head over to https://github.com/Off-World-Live/obs-spout2-plugin/releases and download the spout plugin suitable for you, run the file, accept the prompts and save it into the OBS directory folder. Once its installed you can add a new element in OBS called spout2, do that and in the options button in veadotube mini turn spout streaming on, they should connect form there and hopefully will fix the outline, did for me :3