hcxdumptool - missing frames w/ filtering

[pipss]

I’ve tested wifi_labtools on ArchLinuxarm by running multiple times the same:

Code:

$ timeout 5m hcxlabgetmallpr --onsigterm=exit --essidlist=essid --essidmax=100 --m2attempt=10 -c 9

AP(in the essidlist) was ON, clients: printer, Android 8 and 9.
1 run: 2 HASHLINEs from printer
2 run: 4 HASHLINEs from printer 
3 run: 6 HASHLINEs from printer 
4 run: 8 HASHLINEs from printer 
Time between runs was about few minutes, number of HASHLINEs from phones are also were growing. Every time after HASHLINEs were counted, the dump file was deleted.

I’m wondering what was the phenomenon behind this, if the scanning time was the same 5 min?