In science lab in Sims 4 can't put momentum consever into inventory

Do you have other issues with camera mode or is this the only instance you're having issues with ?

To repair the game, right click on the game in Origin (while you have the game closed) and hit repair game.

I figured out how to fix it. It was the only time I had issues in the game with the camera not working correctly. I could not pick up the momentum conserver which said "created by (my sim)" and when I held down left mouse button it would pan the camera around instead. I went into build mode but still could not put it in my inventory. I was able to sell it in build mode though and build a new one. After I built the new one I was able to move it into my inventory the way you're supposed to be able to with no problems. Apparently it's a glitch where if you don't pick it up on the same day you make it then you can't take it.

So if this happens to anyone else just go to build mode, sell the momentum conserver on the constructor, invent it again and it should work.