VideoReDo TV suite 6. How to trim Interlaced 50 fps video

[Cryosim]

Hi. I trying trim Interlaced 50 fps video without re-encode, but get output file only 25 fps. what i wrong?
Original video:
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/mp41)
File size : 6.80 GiB
Duration : 2 h 18 min
Overall bit rate : 7 035 kb/s
Frame rate : 50.000 FPS
Writing application : Lavf62.1.102

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 2 h 18 min
Source duration : 2 h 18 min
Bit rate : 6 556 kb/s
Maximum bit rate : 6 833 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Active Format Description : Letterbox 16:9 image
Frame rate mode : Constant
Frame rate : 50.000 FPS
Original frame rate : 25.000 FPS
Standard : Component
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan type, store method : Separated fields
Scan order : Top Field First
Bits/(Pixel*Frame) : 0.063
Stream size : 6.34 GiB (93%)
Source stream size : 6.60 GiB (97%)
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Codec configuration box : avcC

After trim:
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/mp41)
File size : 224 MiB
Duration : 4 min 58 s
Overall bit rate : 6 304 kb/s
Frame rate : 25.000 FPS
Writing application : VideoReDo (Lavf58.29.100)

Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 4 frames
Format settings, GOP : M=4, N=28
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 4 min 58 s
Bit rate : 6 099 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Active Format Description : Letterbox 16:9 image
Frame rate mode : Constant
Frame rate : 25.000 FPS
Standard : Component
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Interlaced
Scan type, store method : Separated fields
Scan order : Top Field First
Bits/(Pixel*Frame) : 0.118
Stream size : 217 MiB (97%)
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Codec configuration box : avcC

[poisondeathray]

It is likely 25 fps , because 50 fps interlaced (100 fields / second) does not exist as a standard .

If something was 50 FPS, or 100 FPS, it would be progressive not interlaced

You can verify this by looking at the frame count (debug => advanced mode in medianfo) and checking against the duration