FYI I, too, have this issue on Logitech.

I wonder if it could be related to multi-monitor stuff, as I often mouse out to another window to chat or do whatever on the other monitor, and then click back in to the factorio window, with the noted issue.

Same issue, workaround doesn't work, and I ...

The improved form of concrete is called 'refined concrete' in Factorio. However, I've never heard of refined concrete before. Given that the recipe for it includes standard concrete, steel, and iron bars, I think you're referring to 'reinforced concrete'. https://en.wikipedia.org/wiki/Reinforced ...