Launcher 3.43.21 (Linux): version names and Edit installation fields are blank, labels still show

Short description:

After the launcher auto-updated to 3.43.21, several data-driven text elements in the Java Edition UI are blank. Static labels and layout render fine. A full launcher restart does not help. The launcher log shows the data is fine (it resolves latest-release to 26.3 correctly) so the UI is not displaying it.

Steps to reproduce:

1. On Linux (Wayland/XWayland), let the launcher auto-update to 3.43.21.

2. Open Minecraft: Java Edition > Play.

3. Look under the "Latest release" dropdown in the Play bar and at the news tiles below.

4. Go to Installations > Edit installation on any profile.

Expected result:

The Play bar shows the version name/number, news tiles show their captions, and Edit installation shows the profile Name, a populated Version list and the game directory.

Actual result:

- Play bar: no version number under "Latest release".

- News tile captions are not visible.

- Edit installation: Name field is empty, the Version dropdown list is empty, the game directory field is empty. The labels (NAME, VERSION, SERVER) and the title do render.

- Same on every monitor, tiled or floating, so it is not a scaling issue.

- The game itself launches and runs normally (26.3).

Notes: it worked before the 2026-11-12 auto-update. Launcher language is en-GB. launcher_log.txt has no related errors; the CEF log only has SSL handshake and CRL verification failures.