Characters typed when using shortcut

**Describe the bug**

A character ("A", "B", "C" or "D") is entered in the terminal command when using a shortcut to change the focused terminal.
Using Ubuntu 22.04.

**Expected behavior**

1. The terminal focused is changed
2. Nothing happens on the original (source) terminal

**Actual behavior**

1. The original (source) terminal shows a letter:
- A for above
- B for bellow
- C for right
- D for left

**To Reproduce**

1. Assign "ALT + Up" / "Alt + Down" / "Alt + Left" / "Alt + Right" keyboard shortcuts to the "Focus terminal ..." shortcuts
2. Use these shortcuts

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$ guake --support

Guake Version: 3.8.5

Vte Version: 0.68.0

Vte Runtime Version: 0.68.0

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GTK+ Version: 3.24.33

GDK Backend: