Can you download the .zip-version (0.13.20 and/or 0.14.13) from the website and see if that works?

Downloaded .zip fixed it.

Must've been file corruption.
I didn't suspect file corruption as I would expect more severe flakiness from corrupt files. Lesson learnt.

Thanks for the help everyone ...

Yeah, capslock makes sense, but no dice, both with it on and off.

Also, vanilla install - no mods.

Thanks, I presume there's no stuck key as I can type this message WITHOUT CAPS :) and holding either shift key while left-clicking stops wires from being disconnected from poles, therefore both keys work.

As for the key bindings, I never changed any from their defaults. To be sure, I just reset ...

Hi All,

In the last few hours Factorio has stopped opening the electric network on left-click from a power pole.
In fact, left clicking a power pole disconnects all wires from it (like shift-left-click should). Shift-left-click does nothing.

Starting a new game/new save doesn't fix it.

Is this a ...