Greetings!
This definitely doesn't sound like expected behavior. Has this switch previously been part of a stack (or connected to another switch using a stacking cable), or is it in a factory default state?
One thing to try to get more information is to boot the switch without the stacking module installed, then run the command show logging -a to get log entries from previous boot cycles; if there were any error messages logged during initialization related to the stacking module, they should show up in there.