drvoke: I'm running the 1.0.3.3 Linux version on Ubuntu 18.04 and this happens on both my laptop and on my desktop. When I try to input text into text boxes in the game, it inputs double characters. So if I type "v" it gets input as "vv". And if I backspace, it does two backspaces. This means I can't name my own character or input keycodes in dungeons, etc...

If there is something I can do on my end to fix this, I'd be pleased to help. I have not been able to find any official place to submit bug reports or support issues directly with Juggernaut Games.

edit: This has something to do with ibus, an input methods engine used on Ubuntu/Linux. I switched input method engines and that seems to have fixed it on my laptop; I have not tried the desktop yet. There is probably a better fix that doesn't involve switching input method engines, but I don't know it. If you're running into the same issue on Ubuntu, just run the Input Methods editor and switch to any IME other than ibus.

edit 2: Confirmed this solution works on my desktop as well. Turning off input methods by selecting "None" or xim for the Keyboard input method system in the Ubuntu Language Support tool fixes double inputs.