Signature shortcut not working

[NobodyForNothing]

Lapce Version

v0.4.0

System information

Archlinux / wlroots; de-latin1 keyboard

Describe the bug

The shortcut for showing the method signature isn't working. The signature shows when hovering at the same position as the carret.

To reproduce: Install a fresh lapce -> install rust addon -> open a random rust project directory > open a file

-> hover over any keyword / function => Signature shows
-> Click to move carret there -> move mouse away from code -> press ctrl+shift+space (shortcut) => no signature is shown