Game 7kaa mouse cursor stuck

[Machion]

Since my distro (Manjaro stable) switched from SDL2 to SDL2-compat, when I play 7kaa (Seven Kingdoms https://sourceforge.net/projects/skfans/), the mouse cursor is stuck in the upper left area of the screen. Already on the title screen so I have to press Alt+F4 to terminate the game, because I can't reach the exit button.
I use this Arch package https://aur.archlinux.org/packages/7kaa (rebuilding it didn't help).
Tested with v2.30.52 and 2.32.50