It sounds like you have two methods running concurrently. An example might be something like having the application itself configured to run as the OS starts, and you log in, as well as having it defined in the MSFS “EXE.xml”.
I can’t say, but sometimes toggling an option can fix things. You could try turning that option back on again, relaunch the sim, then see if the issue is resolved. If it isn’t, turn that option off again, reboot, then confirm Simlink isn’t actually running in the background. You may have another process launching it.
deleted simlink, restarted and reinstalled and issue still occurs. Also, data center opens randomly too. delted that, restarted and then reinstalled and issue is still there. help please.