I have an application which executes a post request using Retrofit 2. It’s a multipart with a picture and other data.
On phones with Android 8 or lower, the request works both with Wi-Fi and 4G. On Android 9 phones, though, it only works with Wi-Fi. We are working on a dev endpoint to be fair, but still, even so - it works on all the other phones in both Wi-Fi and 4G.
Do you have any hunch of what might be going on here?