Kia App not working

Hello,

i am using /e/OS for nearly 2 years now, and found my first app which is not working correctly, but it seems its not an issue with microG, instead it seems there are http requests blocked (or redirected to false server) for the Kia App (com.kia.oneapp.eu).

I think i traced the issue to requests to cci-api-eu.kia.com, but am not entirely shure. I tried getting some debug logs via adb or intercepting the traffic with mitmproxy, but both attempts are being blocked by the app through adb detection and cert pinning.

Is there something in the OS which could block http requests to specific domains? While intercepting the traffic i could see that dns requests for cci-api-eu.kia.com would resolve correctly. So it should not be DNS blocking

I hope someone has an idea

teebee

forgot to mention:
Currently using an Murena Fairphone 4 on /e/OS 3.0.2 a14
The problem is when trying to access remote control or account settings, so it requieres at least an kia account to encounter this problem. The Kia Support staff was trying to figure out what was going wrong but could not find any problem on theire end.
Additionally i can rule out any problems with my network, because its not working when im on mobile or w-lan and my wife has no problems who is also using an Fairphone 4 but with Google Android.