A couple of days ago, I bought a Nokia 5, and for the most part, I have finished setting it up. However, one issue I've come across is that while I'm able to disable mobile data for my first SIM, I am unable to disable it for my second SIM.
Running Android 9, if I go to Settings > Network & Internet > Data Usage, the Mobile Data option for SIM 2 is greyed out, with the slider in the enabled position. I am unable to disable it. I can change the setting on SIM 1, and I have it set to disabled with no issues.
The icons in the status bar show one SIM's mobile data to be disabled with a X next to the reception icon, but the other does not show it.
What's the cause of this, and how can I disable data on both SIMs?