It’s possible that even though your platform fully meets our Live Gamer 4K (GC573) requirements due to motherboard’s PCI-E slot bandwidth planning frame drop will be generated when trying to record 4K P60 content under certain settings. In this case you can try followings:
1. Instead of using P010, RGB24 formats try NV12 or YUV (refer to RECentral 4 settings)
2. switch Live Gamer 4K (GC573) on another PCI-E slot
3. install the card on another PC environment.