Sidebar (when hidden) refuses to stay hidden sometimes

When using TotalFinder’s split screen with two tabs on each side of the split; and with the view menu set to “Hide Sidebars” - the sidebars don’t stay hidden when selecting tabs on either side of the split.

The only way to force it to remember the hidden sidebar option when selecting tabs on either side of the split 'is to force quit finder, and then reopen TotalFinder.

However, if I create a new tab, the sidebar appears by default on the new tab 'which then causes the sidebar to appear on all the other tabs on with side of the split - forcing me to have to force quit the finder again.

Here’s a 3.5 minute demo of the issue.

Thanks for watching.