Local library doesn't show folder list

[MikeTheGreat]

Platform: Xubuntu

Static hostname: XUbuntu-PC-1 Icon name: computer-laptop Chassis: laptop 💻 Operating System: Ubuntu 24.04.3 LTS Kernel: Linux 6.14.0-29-generic Architecture: x86-64 Hardware Vendor: HP Hardware Model: HP EliteBook 830 G7 Notebook PC Firmware Version: S70 Ver. 01.12.00 Firmware Date: Wed 2023-01-04 Firmware Age: 2y 8month 2d

Nuclear version:

0.6.48, I think

Description of the issue:

When I open the 'Local Library', then click on the 3rd icon (the folder one) I see a blank, white screen:

I'm expecting / hoping to see a list of folders/dirs, like the video in #1138 shows.

I'm running this via Flatpak. I've added command-line arguments as per #1793 and when I use the default list (the left-most one: the 'list of rows' view) I can see the files fine and play them fine.