increase brush size shortcut not working in liquify

Photoshop 2024

Mac M1

Mac OS Ventura, German, and many sytems before…

For a decade now Photoshop has a bug with shortcuts: I use german Version and Keyboard. Shortcut for decraeasing brush sizes is #, increasing is ' (shift+#). Works well. But in some modal workspaces like liquify, both shortcuts decrease the size. It’s driving me crazy! 

Is there any shortcut i can use instead and everywhere in Photoshop (control+option+drag is no option).