Cannot Browse all Photos in Mac Photolibrary

[MDJLC]

I have a Mac and recently found that Picasa is no longer available in 64 bit. I found XnView MP as a replacement. I tested it on a iMac running High Sierra 10.13.6 and Photos 3.0. When I right click on the Photos Library.photoslibrary package and select Show All Files (recursive), XnView very kindly opens all pictures in Brows mode. This is exactly what I wanted. So, I tried the same thing on a newer iMac running Catalina 10.15.4 and Photos 5.0. When I right click on the package Photos Library.photoslibrary and select Show All Files (recursive), it never expands and does not display the pictures within. Have I missed something or is this an option that is yet to be restored in XnView perhaps?

[xnview]

where do you choose Photos Library.photoslibrary ?

[MDJLC]

When XnView starts in Browse mode, there is a "Folders" pane on the left side. I open the Pictures folder and Photos Library.photoslibrary is there. I right click on that and select Show All File (recursive) and there is no response.

[xnview]

When XnView starts in Browse mode, there is a "Folders" pane on the left side. I open the Pictures folder and Photos Library.photoslibrary is there. I right click on that and select Show All File (recursive) and there is no response.

Catalina has added lot of right authorizations, so perhaps it's the problem?

[MDJLC]

Is that something I can address? Or is it just always going to be this way?

Thank you for your replies / comments.

[xnview]

Is that something I can address? Or is it just always going to be this way?

Right, but strange i can browse after doing that:
- open Batch convert
- 'add files', and choose the Photoslibrary
- close, and restart XnView to browse Photoslibrary

[MDJLC]

Brilliant!!!! That worked.

Thank you so much for your precious time in helping me.