Originally posted by Ralifur:

Sounds odd.

Console works fine here and i have it added same way as Doom Shroom describes. And yes it opens on F5 for me.

Dont really have any suggestions for you @OP as it sounds like you are doing it right. You 100% sure its not some silly FN function or a macro function thats enabled on your keyboard?

I spent some dedicated time on the issue... and it was the FN settings on the keyboard. By default I have they keyboard set to do the secondary functions like volume and mute etc (which only exist on F5-F12, hence F1 and F2 still working). I didn't realise this was carrying over into the game profile. I'm too old to make such rookie mistakes haha.