That's recent, began near the end of chapter 2 and carried on into chapter 3 - may be related to the latest patch?
The bug is, as the title suggest, there's no longer any build time for units, they are instantly built once I click on them (even on slowest speed)! Or is that a change on purpose?
I forget the specifics of it, but there is a mechanic for reserve count of units if you bring a TON from the strat map. That's where your instant build is likely coming from.
If you hover over the unit you are about to build on the HUD I think it shows your count.
