To lock view to target isn’t the space bar, it’s the X
I’m quite sure if you can’t lock the target even though you can see it, it’s because of fog or night (X or space bar to bring the XO)
You have to wait until you can lock it, i know it’s a bit frustrating...but soon or later you can finally lock it!
Latest TWOS isn’t that bad on that particular matter. Some adjustments has been made. But i remember years ago, it was even worst