Keypad PIN not shown in App

Hi!

With
curl -X GET --header ‘Accept: application/json’ --header ‘Authorization: Bearer ACCESS_TOKEN’
https://api.nuki.io/smartlock/SMARTLOCK_ID/auth
I can see 4 different Keypad PINs type =13 and in NukiApp I can see only 2. Why ?

I also cannot delete unvisible PINs using
curl -X DELETE --header ‘Accept: application/json’ --header ‘Authorization: Bearer ACCESS_TOKEN’
https://api.nuki.io/smartlock/SMARTLOCK_ID/auth/PIN_ID

Any ideas?
Thanks!
Igor