Be aware there is a difference in how your saved layouts appear in the layout menu.
In 9.3 and earlier, your saved layouts would appear in the top part of the layout menu, unless you had more than 9. If there were 9 or more the others appeared in the menu item "More saved layouts".
In 9.4, the top part of the lay out menu will display up to five layouts, showing the five you use most often.
Others will appear in "My Saved Layouts"
Don't be dismayed if you install Paratext 9.4 beta and don't see your layouts in the top part of the menu. This part will be blank when you first start out because you have not used any layouts in 9.4 yet. If the top part is blank, open "My Saved layouts" to find your layouts.