Same here with K95 RGB Platinum.
Upper row with numbers (2-ß) gives wrong output when iCue is running, e.g. when I hit "6" the output is "6m", hitting "2" results in "2K" and so on...all other keys work as they should.
The F-Keys are even worse, they give out multiple keypresses, e.g. pressing "F3" results in "F3" "STRG right" "STRG left" and "c". :(
No issues when iCue is turned off, so it seems to be a software issue (v3.22.74)