Hi, I had same issue with mine and soon after I have noticed this it has progressed to sticking or being often stock while I was typing. Then I also noticed that my track pad didn’t work when I clicked and dragged every other time so I decided to take it to Apple store.....They tried cleaning the bar with dust off saying maybe food got stock under it?? I was like no I don’t eat on top of my computer so they decided to take it in for repair. Since it was purchased under business with insurance they gave me a new MBP on the spot. So I suggest u take urs in for diagnostics!! I don’t think space bar should feel different then any other key!!