The video below was produced using the Galaxy Note 10+
*Aside from sending the logs, you also have the option to send screenshots or screen recording of the issue you encountered. Just tap on the paper clip icon on the upper right of the screen beside the send icon.
Please have a look on the SIM card settings because it could have been the settings was not on for SIM 2.
Also, kindly check the SIM card orientation as it could have not been placed correctly in the SIM tray.