What steps should I take to troubleshoot a 403 error when trying to open an existing place or project in Roblox Studio?

If you receive a 403 error when opening a place, first verify that you are logged into the correct Roblox account within Studio. Try logging out and logging back in to refresh your session. Ensure your internet connection is stable. If it's a group game, confirm you have the necessary 'Edit Experience' or equivalent permissions within the group settings. Sometimes, simply restarting Roblox Studio or your computer can resolve transient issues.