Still, it is supposed to work or the RPi4 would not come with analog output. it only happens on greater than 1080p videos and disabling HW acceleration makes it work. In previous versions had to disable deinterlacing to make it work.
These are all known limitations. See also this recent thread kodi-rpi 19.1-4 crackling audio on analog output (jack)
You can avoid the crackling by adding audio_pwm_mode=1 to config.txt - but that will result in lower quality audio output.
If you want decent analog audio output invest 10-30 bucks in an I2S DAC HAT.
so long,
Hias