You need to say what version of AC and what OS/hardware you're on.
I haven't heard of this one. Does not sound like an AC problem. Is your keyboard and mouse wireless...and maybe one is low on battery? Have you tried a different keyboard and mouse?
Karl
One of the forum moderators
AC 27 USA and earlier • macOS Ventura 13.6.6, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB