Hi Markus,
This workaround didn't work for me either. I'm on a Mac.
Sent you an email about it.
I think it's a sensible feature to be able to hide tool tip boxes from the setting page, since after a few hours you learn what each knob does and the labels become quite redundant.
The tool-tips box can also get in the way of actually grabbing hold of the knobs using a mouse.
Also if you are like me using a larger mouse pointer because of limited eyesight, then the mouse pointer is often hiding the values displayed by the tool-tips box.
The numeric values of the knob change could be displayed without a box or parameter label, hopefully above not below the knob so the mouse pointer doesn't hide it.
Thank you.