I'm not sure if anyone else has this issue. When I have the hotspot option toggled in iDrive my phone connects but will NOT prompt me to log in at all. My phone then proceeds to have WiFi issues and won't connect to another network until I reboot. I the issues is my phones software, not iDrive.
Samsung S9+ unlocked version running Android 9 (Pie) Build: PPR1.180610.011.G965U1EU3CSA8
I'll confirm whether or not the issue persists with my S10+ unlocked version that arrives tomorrow in elegant Ceramic White