Hello there!
I’ve been having some issues with the OSSC while using a Sega Saturn connected via Scart. I managed to record a video (sorry for the awful footage): https://youtu.be/vgb0lmCbKF0
These weird sync drops keep happening, making the screen go black. They get more frequent after 30 minutes or so of gameplay. Also, I’ve noticed that games with brighter/flashy graphics are more prone to these drops.
I have two saturns (a japanese NTSC console and a brazilian Pal-M one) and this is happening with both of them. I also bought a scart cable with better shielding to no avail.
Thanks (and sorry for my english).