I've recently upgraded SeeMusic to the latest version, 5.4.10 and I have a blank icon instead of the usual one. I'm currently using Windows 11.
Besides that, it seems that I can't render without audio the first time I try to after I open SeeMusic, but I can do that after I've rendered with the audio once. I've tried both with the AvPro and the Basic framework, I've changed framerate and resultion and nothing seems to change. It's not a big deal but it's slightly time consuming.
Switch the video codec to H.264.