Is me game glitched? I cleared the abyssal riftlines, but I still can’t get this thing to move, no matter what type of Kuuvhaki thing I use.

Usually they move when you touch them.

Try re-logging. There are a few of these that can get stuck for no apparent reason.

Place a marker to not forget about it and return later.

I had the same problem and it just worked when I returned after I was done with everything else.

Yeah this was bugged for me too. After a server reset it worked for me and got the chest