FFMPEG errs on conversion

[benzionyunger]

The file produced is empty, here is the complete console output:
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May 23, 2021 4:01:44 PM io.appium.java_client.remote.AppiumCommandExecutor$1 lambda$0
INFO: Detected dialect: OSS

log4j:WARN No such property [maxBackupIndex] in org.apache.log4j.FileAppender.
log4j:WARN No such property [maxFileSize] in org.apache.log4j.FileAppender.

2021-05-23 16:01:44 INFO FFMpegRecorder:26 - Trying to execute the following command: [ffmpeg, -y, -video_size, 1858x1035, -f, gdigrab, -i, desktop, -an, -framerate, 24, -pix_fmt, yuv420p, D:\Users\byunger\projects\gems-bb\GEMS\video\temporary_recording_2021_23_05_16_01_44.mp4]
2021-05-23 16:02:05 INFO FFMpegRecorder:40 - Trying to execute the following command: [cmd, /c, for /f "tokens=2" %i in ('tasklist ^| findstr "ffmpeg"') do @echo %i]
2021-05-23 16:02:05 INFO FFMpegRecorder:40 - Trying to execute the following command: [SendSignalCtrlC.exe, ]
2021-05-23 16:02:06 INFO FFMpegRecorder:58 - Process kill output: "" is not a valid PID.
0x00000057 == (FormatMessage failed)
2021-05-23 16:02:06 DEBUG FFMpegRecorder:63 - Recording output log: ffmpeg version n4.4-17-gf7468a9c40 Copyright (c) 2000-2021 the FFmpeg developers
built with gcc 10-win32 (GCC) 20210408
configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --disable-w32threads --enable-pthreads --enable-iconv --enable-libxml2 --enable-zlib --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvorbis --enable-opencl --enable-libvmaf --enable-vulkan --enable-amf --enable-libaom --enable-avisynth --enable-libdav1d --enable-libdavs2 --enable-ffnvcodec --enable-cuda-llvm --enable-libglslang --enable-libgme --enable-libass --enable-libbluray --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvpx --enable-libwebp --enable-lv2 --enable-libmfx --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librav1e --enable-librubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d --enable-libvidstab --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libzimg --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-ldexeflags= --extra-libs=-lgomp
libavutil 56. 70.100 / 56. 70.100
libavcodec 58.134.100 / 58.134.100
libavformat 58. 76.100 / 58. 76.100
libavdevice 58. 13.100 / 58. 13.100
libavfilter 7.110.100 / 7.110.100
libswscale 5. 9.100 / 5. 9.100
libswresample 3. 9.100 / 3. 9.100
libpostproc 55. 9.100 / 55. 9.100
[gdigrab @ 00000241531b6700] Capturing whole desktop as 1858x1035x32 at (0,0)
[gdigrab @ 00000241531b6700] Stream #0: not enough frames to estimate rate; consider increasing probesize
Input #0, gdigrab, from 'desktop':
Duration: N/A, start: 1621774904.704171, bitrate: 1844277 kb/s
Stream #0:0: Video: bmp, bgra, 1858x1035, 1844277 kb/s, 29.97 fps, 1000k tbr, 1000k tbn, 1000k tbc
Stream mapping:
Stream #0:0 -> #0:0 (bmp (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 00000241516ec780] height not divisible by 2 (1858x1035)
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
Conversion failed!

2021-05-23 16:02:06 INFO FFMpegRecorder:64 - Recording finished to: D:\Users{me}\projects\myProject\video\valMainPageBtns_recording_2021_23_05_16_02_06.mp4
2021-05-23 16:02:07 INFO RecordingUtils:81 - No jenkinsUrl variable found.
2021-05-23 16:02:07 INFO RecordingUtils:26 - Video recording: D:\Users{me}\projects\myProject\video\valMainPageBtns_recording_2021_23_05_16_02_06.mp4

Note - If I use the MONTE recorder which saves an avi file it works fine, then I can convert it on the command line successfully by executing ffmpeg -i {filename} output.mp4`