Hi there, @phillip-selleh.
Thanks for joining us here in the Community. I'm here to help you get past the missing scrollbar issue that you encounter and get you back to business.
When you encounter unexpected behavior in QuickBooks, it's recommended to try browser troubleshooting. You can try switching to another browser to verify if the issue is browser related.
Here are the different keyboard shortcuts to open a private browser:
If it works fine, you can go back to your regular browser and clear its cache. Cache is stored in order to speed up loading times, but this can impact processes and cause them to not work.
For additional information on this and steps for supported browsers, please visit the following link: How Do I Clear My Browser Cache And Temporary Internet files?
If the issue persists after trying these steps, I'd suggest giving our Customer Care Team a call. They can an pull up your account in a secure environment and has specialized tools to assist with connectivity.
Please don't hesitate to post any questions that you may have. Have a great weekend!