I have similar problems.
First of all, I play rocketleague > keyboard only.
1. I decided to use WASD LeftShift LeftControl + NUM4 NUM5 (and some more) keys. But it appears that SHIFT+NUMPADkey is a problem in WIN10.
decided by windows to be is some sort of no-numpad-input-system
2. I decided to remap NUM4 and NUM5 to ; and '. This looked to work fine, for a long time.
3. I actually play on key: ; and key: ' now, but there is still a problem, when using right-alt (so have to remap that one, in this case).
ANYWAY... my I have mayor unstability in input. It doesn't feel as BE4.
I removed all profiles / settings / folders (incl %appdata% and programdata)
But the problem remains.
I still have RIGHT-alt remapped though.
Besides this issue, I have scaling problems with iCUE for ages. Adressed here:
https://forum.corsair.com/v3/showthread.php?p=1024709#post1024709
And besides that I have like 6 broken keys & 50% of the RGB's still working....
CORSAIR... any reply? gonna do anything about it? 🙀
ty, PASCAT 🐈😻