Mouse cursor eventually disappears when grabbing desktop

[menebel]

Summary of the bug:
When grabbing the desktop, the mouse coursor eventually disappears from the recording. In the example video I attach, it is visible until time 9:36 and is no longer present in the recording at time 9:49 and following.

How to reproduce:

% ffmpeg.exe" -report -probesize 15000k -f gdigrab -framerate 15 -video_size 1680x1050 -i desktop -f dshow -i "audio=Microphone Array (Realtek High Definition Audio(SST))" -pix_fmt yuv420p -preset ultrafast -c:v libx264 -c:a aac -f tee -flags +global_header -map 0 -map 1 "[f=flv]C:/Users/nebel/Documents/GeekChalkVideos/11A14461-DAB7-48A5-BDB8-8E0D91701CEF.flv"

ffmpeg version
built on  4.2.3

Patches should be submitted to the ffmpeg-devel mailing list and not this bug tracker.

[menebel]

Log file of ffmpeg

[menebel]

Link to example Video

[menebel]

Please note that the issue seems to exist only when using Windows on a tablet PC and a pen instead of a mouse. In this scenario the mouse cursor is turned of whenever the pen is lifted and this seems to cause the trouble.