Lvl 20 uncut skill gem didn't increase level

I bought a lvl 20 uncut skill gem, used it to level up my lightning warp skill to 20, and it's still at level 19. 1 div down the drain.

Double checked every skill gem i have, equipped or unequipped, so its not like i clicked the wrong skill. Can someone help me with this?

Thanks

Edit - It upgraded the lightning warp inside of my cast on freeze.

Literally just had this exact same thing happen to me. First lvl 20 skill gem I found and it upgraded the wrong one lol. I guess I have an extra perfect jeweller's orb at least and I can sell this lvl 19 one with 5 sockets I suppose.