The extracted video framerate increased from 23.98 to 25

[popshswt]

I tried to demux mp4 Dolby Vision file to remux for watching on Apple devices. Here's the metadata of the video track from the mp4 file

Stream #0:0[0x1](und): Video: hevc (Main 10) (hev1 / 0x31766568), yuv420p10le(pc, progressive), 3832x1600 [SAR 1:1 DAR 479:200], 29891 kb/s, 23.98 fps, 23.98 tbr, 24k tbn (default) Metadata: handler_name : VideoHandler vendor_id : [0][0][0][0] Side data: DOVI configuration record: version: 1.0, profile: 5, level: 6, rpu flag: 1, el flag: 0, bl flag: 1, compatibility id: 0

but when I demux the file, the h265 video file became like this

Stream #0:0: Video: hevc (Main 10), yuv420p10le(pc), 3832x1600 [SAR 1:1 DAR 479:200], 25 fps, 25 tbr, 1200k tbn

The framerate just increased for no reason and this made my video shorter than the actual one. Can you guys please help me about this issue?