Zotero 10.0.0 hangs on “Loading items” on Ubuntu 24.04 after update

I'm experiencing a reproducible startup/hanging problem with Zotero 10.0.0 on Ubuntu 24.04.

After updating Zotero, the application remains stuck on “Loading items” and my library doesn't appear.

System: Ubuntu 24.04
Zotero: 10.0.0
Installation: zotero-deb package from the Zotero APT repository
Library: /home/rainbringer/Zotero/

I verified the Zotero database with:

sqlite3 zotero.sqlite "PRAGMA integrity_check;"

which returns:

ok

The library itself is intact. I can start Zotero from the terminal with zotero, and in that case the library sometimes loads correctly. However, launching with --url consistently hangs on “Loading items” ("Cargando elementos...")

I also reproduced a hang when opening a linked item (an item without a Zotero-managed PDF attachment).

I completely removed and reinstalled the zotero package, but the problem persists.

Relevant messages from the terminal include:

Sandbox: CanCreateUserNamespace() unshare(CLONE_NEWPID): EPERM

and:

Missing chrome or resource URL: chrome://zotero/skin/16/white/loading.svg

The Debug ID for the startup problem is:

D858370818

The last debug messages before the application stops progressing were:

Starting full-text content processor

Registering notifier observer 'fulltext_s1' for [sync]

Expected behavior: Zotero should finish loading the library and display my items normally.

https://s3.amazonaws.com/zotero.org/images/forums/u14494468/52zmo1l5hkup4fr06cnx.png
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