No way to reset Trac password + bug report

[Georger Araujo]

Hi,
I would like to report a bug but I forgot my Trac password (username: georger.araujo) and it seems the 'Forgot password?' link is not available in the Trac login screen. So I report it here. Sorry for the trouble.


Title: LilyPond preview does not work with LilyPond 2.24.1

Lyx version: 2.4.1, installed on Debian 12 (bookworm) from Debian Backports

Description:
I enabled "Instant preview" in Tools > Preferences... > Display, and closed LyX.
I opened LyX from the terminal: lyx &
I opened "LilyPond Book" in File > Open Example... , and clicked on all the LilyPond insets inside the preview insets. Even after waiting several minutes, the previews did not display. Here is the terminal output:
```
vboxuser at bookwormlyxvm:~$ lyx &
[1] 2638
vboxuser at bookwormlyxvm:~$ QSocketNotifier: Can only be used with threads started with QThread
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
Warning: Failed to produce 4 preview snippet(s)
Warning: Failed to produce 1 preview snippet(s)
Warning: Failed to produce 1 preview snippet(s)
Warning: Failed to produce 1 preview snippet(s)
Warning: Failed to produce 1 preview snippet(s)
```

I also tested on Windows with LyX 2.4.1 with LilyPond versions 2.22.2 and 2.24.2:
- With LilyPond 2.22.2, instant preview works, i.e. LyX displays the previews.
- With LilyPond 2.24.2, instant preview does not work, , i.e. LyX does not display the previews.

I took a look at the lilypond-book script, and it seems a lot was changed between LilyPond 2.22 and 2.24.