Like so many other posts here, iCue update to v4.11.274 and constantly keeps crashing! It's completely unusable. Said I had a firmware upgrade for my mouse, yet could never install it. Put v3 back on and it works great - but no firmware upgrade notice.
I hope the Corsair developers are reading this forum and seeing all the issues users are having with this! It's like this was never tested appropriately and such a shame from a company like Corsair.
Hopefully they'll release a new version very soon with many of these complaints fixed!!