We are using the Org Chart for SharePoint Online (Office 365) and had 3rd party developers set this up for us and are no longer supporting changes and handed it over to us. I have been able to make modifications via the wizard and using custom CSS.
When the Org Chart is loading I can briefly see scroll bars then they disappear. When the org chart is expanded the list of user are off the page so is there a way to turn on Scroll bars even though you can click and drag the org chart around either by a setting or custom CSS?
What is the version of Org Chart you are using? Is it placed to a modern or to a classic page? For Org Chart in Office 365 on a modern page, please try to use the following CSS to enable scrollbars:
.poch-content{
overflow: scroll
}
If you have another version of Org Chart and this CSS doesn't work out please just let me know.