Hi Matt,
I’m back with some updates on the issue you encountered.
Recently, we released a new dev v2.23.4 update that fixing the issue with unstable hotspot connection when the SIM card is inserted. However, please note that it’s currently not possible to enable mobile sharing to provide 3rd-party devices with Internet access.
Dev releases are good for testing and allow earlier access to the new features until they make it into the stable branch. They are also very helpful because of the feedback of our users who tried them.
If you decide to test it, please let me know if it resolves the issue.