H.264 not rendering correctly Rendered video is playing back too fast giong out of sync with audio

[Corqi]

When i play back the movie in premier it looks fine 
but when I render in h.264 the video plays back heaps faster than the audio which sounds right
does this in all projects that i have tried
I Can render it as an avi and works
The Frame rate is 25fps for both the source and the render...
Only since installing new CC2020 on new  AMDlaptop

[Peru Bob]

Try turning off Hardware Encoding.

[R Neil Haugen]

Is the media by any chance created by a phone? If so, it's VFR, variable frame rate ... which can easily do this. If so it would need to be converted CFR with HandBrake and re-imported into Premiere Pro.

Neil