Subfolders are not recognized

@andhen25   I will let @drtonyb  carry on with answers, but would you try one thing for me-

1) Exit Lightroom-Classic

2) Use File Explorer to RENAME the first sub-folder that is called { Festival Clausura '24 } by removing the { ' } from the folder name. (Use alpha numeric characters only.)

3) Re-open the catalog

4) [Right-click] on { Festival Clausura '24 } and [Find Missing Folder] , choose { Festival Clausura 24 } 

Tell us if the renamed folder re-appears in the catalog.

I am often suspicious of characters in file/folder names that LrC may not accept.   (the forward slash  /  is one definite problem character.)

Did you right click on LACI Photos and Update that folder location?

@andhen25 

How large is your catalog, meaning how many photos?

Is LACI Photos a folder on your main hard drive?

You may try this:

Create a new empty catalog from the menu File > New Catalog...

Use File > Import from Another Catalog... to import all the photos in your main catalog into the new one.

Check the LACI Photos folder in the new catalog and see if the subfolders are present and populated.

I they are, then there may be a corruption in your main catalog, which likely could be fixed.