Need help with yellow boxes when tabbing

Happy Monday and congrats on your first post, Catherine!

To make sure I'm on the same page, are you seeing the yellow highlight on the 'Back to top' button and the two hotspots ? Here's a short recording of my test. If so:

Here's how you can disable that button (the skip navigation shortcut): Click on Player > When the player properties window opens, click Other on the ribbon > Mark the box to Disable skip navigation shortcut. This article covers the latest accessible enhancements!

The yellow highlight will appear on hotspots when using the Tab key even though the 'Object is visible to accessibility tools' box is unmarked and is not in the Tab Order. This is because hotspots are invisible buttons, and the Tab key moves the yellow focus to elements that are considered to be controls or interactive. The 'Object is visible to accessibility tools' option is intended to make items that are typically invisible (like a text box) visible rather than making a normally visible item invisible to accessibility tools. 

Let me know if that helps or if I missed the mark. I'm happy to help!