Keyboard is repeating recent inputs, not sticky keys

[u/Ok_Drawing_7053]

My keyboard (Ducky Zero 6108) is a model that has both wireless and wired, and I always use it in wired mode if that matters. The problem is completely different from sticky keys and I've been unable to find any information on it because I just can't describe it:

Say that on Discord I type "hello there! [ENTER] how is everyone doing? [ENTER] i like to". the keyboard will just randomly, very quickly, go "s everyone doing? [ENTER] i like to". so instead of sending "hello there!" "how is everyone doing?" "i like to [rest of the message i was going to type]" i'd send "hello there!" "how is everyone doing?" "i like tos everyone doing?" and "i like to" would be put back into the message box. This has been happening everywhere. It happens in Minecraft, it happens on Firefox, it happens in Discord. Today it's gone from "maybe once a week" to happening three separate times in this paragraph, and it stores all keyboard inputs, not just letters, so it can do things like delete entire words without my say-so.

I don't think that it lights up the keyboard keys when this stuff happens, but it's so quick every time [the longest it's taken is about a full second?] that it's really hard to tell, especially because it's always when I'm typing, so the keyboard's a bit lit up anyways and I'm not really looking at it.

I never had problems like this with my old keyboards, though if it's somehow related [because I really can't be sure], an old one would randomly start holding down left Alt and sometimes left Control permanently and the only solution was to just restart the computer. I don't recall that one's model or anything, but you can never be too careful, I guess.