If you made saved Exeg Guides using a Custom Exeg Guide, then delete the Custom Exeg Guide, when using the Basic Search L4 still counts them but shows blank lines.
The saved guides are still available if you have linked to them in favorites or Notes. But the Custom guide from which they originated has been deleted. L4 needs to determine a mechanism to show them in Basic Search. i would just keep showing the original Custom Guide name (as shown in image at the bottom of this post).

This happens no matter how long you wait before doing the search (30 minutes), or even closing L4 and reopening, this still happens.
Steps to recreate:
- Create a Custom Exegetical Guide and name it Cust EG.
- Open Cust EG from the Guide menu.
- Enter a scripture reference (e.g. John 1:1)
- Change the title to ExG -- John 1.1
- Wait 3 or 4 minutes for L4 to register this saved guide
- open Basic Search, and set All text, Entire Library. Then perform the search.
- Under My Contents verify that you see the saved guide.
- Delete the Custom Exegetical Guide using the Guides menu and right click.
- wait 3 or 4 minutes (or how ever long you want)
- perform steps 6 & 7 and notice that the found count indicates that the saved guide was found. But also notice the blank line under My Contents.
Here is an image of what i had earlier before deleting the Custom Guide (ignore all the red lines, this image is from a wiki page that i am working on). I had deleted the custom guide Exegetical Guide [Study] sometime after this image was captured.

Edit: i am using 4.2 Gold