numpad issue if using zsh

[HoBoIs]

Contour Terminal version

0.6.1.7494

Installer source

GitHub: release page

Operating System

Linux Mint 22.1 x86_64

Architecture

x86-64

Other Software

zsh 5.9

Steps to reproduce

Start contour with zsh.
Try typing numbers (or -+/* signs) using the numpad.

Expected Behavior

The numbers/signs are typed in

Actual Behavior

The cursor moves as if num-lock were off.

Additional notes

If I use zsh in contour my numpad is always in a state as if num-lock were off. So I can't write numbers or +-*/ characters.
The same problem doesn't come up if I use contour and bash (5.2.21) or GNOME Terminal (3.52.0) and zsh.

I don't know if it is a contour issue a zsh issue a config issue or some combination of them.

My config for contour:
contour.yml

And my config for zsh:
.zshrc