Input and Output Different Duration

Hello,

I have a problem with the duration of the output file. The input file has a duration of 01:43:58 with 23.976 fps, while the output file has a duration of 01:44:04:447 with 23.976 fps.

The input file is a HEVC Quicktime mov. Output is Uncompressed YUV 422 8-bit mov.
The Timeline frame rate and playback framerate are set to 23.976 fps.
Also the framerate at 'Deliver' is set to 23.976.

Any help, this is my first time using DaVinci Resolve.

Okay. It seems the mov file is 23.976 fps and DaVinci Resolve sees this as 24.000 fps. How do I force DaVinci Resolve to recognise this as 23.976 fps?