Dear @Peter_Pertrili,
NvMedia engines that are using NvMediaImage the synchronization is automatically happening if the engines are running in the same process.
This means that if the result of the 2D operation is submitted for JPEG Encode, the Encode is going to wait until 2D finishes the blit
For JPEG Encoder there is no need for NvSciSync synchronization because the encoded stream is waited by and received by the CPU.