Chosen Solution
After the spacebar stuck, I decide to open up the spacebar key cap and discover this.
On the (Red X), the butterfly mechanism on this side is not responsive as the other side After inspecting the other side of butterfly mechanism, I discover the (Blue Z) was bit loose and lifted. I had 2 option, Enroll the Keyboard Service Program for MacBook, MacBook Air, and MacBook Pro.Gluing the (Blue Z) to the bottom hope the butterfly mechanism is back intact. What should I do?
I like free repairs that someone else is on the hook! I would get your system to Apple ASAP and let them deal with it.