Click/tap the Refresh menu item on the left drawer a couple of times.
If the latest version does not show, you can do the following:
Close all tabs with my.acornfinance.com, merchant.acornfinance.com
Open a new tab and load my.acornfinance.com check if the new layout and version 5.0.0 if not:
Do 1-8 refreshes until you see version 5.0.0 with the new layout
Or close your browser down completely, and do a hard of the page.
Now the latest version should be loaded.