Linux-only bug? - can't buy items, can't unlock abilities, can't use chat

[silversteellady]

Been playing Deadlock for some time on Windows and recently switched over to Linux, the game runs fine for the most part but annoyingly I'm now encountering a (seemingly random?) bug which never happened to me on Windows which affects a few important features at once -

1. Unable to buy items in the shop - the game does play the 'buy' sound if an item is clicked but it won't actually give it to me
2. Unable to unlock abilities or their upgrades unless I use the number keys
3. Unable to send chat messages - you can type out text but nothing gets sent when you press return

Restarting the game and rejoining the match does fix these issues but that's obviously not a perfect solution (for various reasons) especially when this seems to happening in almost every match that I play. Occasionally the bug goes away randomly without having to rejoin but not very often.

Can confirm that it's not just me that's affected by this bug, my girlfriend also plays Deadlock on Linux and it's happening to her as well.

Is this a known bug and is there an existing fix or one on the way?