I've moved this thread to RGSSx Script Support. Please be sure to post your threads in the correct forum next time. Thank you.
One of your scripts is absolutely causing it.
By "status menu" do you mean "status screen" (the full status screen for a single character) or the status panel in the menu (with 4 characters)?
If you mean the status screen, do a global search in scripts (control + shift + f) for class Window_Status and see what custom scripts come up.
If you mean the status panel of the menu, do a global search for class Window_MenuStatus and see what custom scripts come up.
Disable each of those scripts, one at a time, play, and see if it still happens. If it doesn't, that script is the one that's causing the problem.
Then post a link to the script.