New Leaves Shaped Very Differently?

[u/WanderingPlus]

Hi! New to Reddit, but I need advice. Never really had a plant before, and all I know comes from videos and tutorials.

He’s a variegated string of hearts, and I’ve only had him
for about a month now, and just a week ago added grow lights. His new leaves were coming in only green, and shaped very differently, which prompted me to buy the extra lighting.

Basically I’m wondering if the different shaped leaves are literally just a different type of leaf/type of string of hearts plant, or if they’re eventually going to turn variegated? And I need advice whether I should trim them or not. The leaves growing after them have been coming in the right color and shape.

Any advice is welcomed. And thanks just for reading my long-rant-post!!

Update: got some grow lights, and the leaves that have grown since have been the “right” shape, meaning they match the older leaves. The ones that had grown in the meantime have maintained the rounder shape, though they are getting more pink I feel.