Welcome to the Community forum, @htman18. I'm here to lend a hand.
You can hide a bank account if you don’t want to see transactions from a particular bank account.
To isolate the issue as to why you're unable to toggle off the bank account, I recommend accessing your account in a private browsing window to ensure no outdated files are leading to this issue.
Here are the keyboard shortcuts that will help you accomplish this in all supported browsers:
Chrome: Ctrl+Shift+N
Internet Explorer: Ctrl+Shift+P
Firefox: Ctrl+Shift+P
Safari: Command+Shift+N
Once you've logged into your account, try to toggle off the bank account again
Here’s how:
Click the Gear icon on the upper right hand.
Choose Bank Accounts from the drop-down menu that appears.
Find the account you want to hide and toggle OFF the Show Account option.