The situation is resulted from many potential reasons.

Nvidia Shadow Play Highlights is not working.GeForce Experience is not recording Gameplay.GeForce Experience is not recording mic/voice chat.However, sometimes, you will encounter with some problems when recording gameplay with GeForce Experience like, With several hotkeys, you can simply press hotkeys to start or to stop the recording, you can even enable the instant replay and record the latest 2 minute-gameplay videos when you think you are playing well. The game recording feature of GeForce Experience is very easy to use. It is a pretty good choice for capture gameplay videos since it is easy to use and reliable, after all, it is built officially, so that we expect better compatibility among the graphics card, the game, and the recording. Nvidia GeForce Experience is a designated tool that created for game players on Windows, with which Nvidia graphics card users can upgrade driver easily, optimize game settings with clicks, and record/screenshot their gameplay.

Record gameplay nvidia