PetiteKnit Marseille sweater beginning

I have cast on using Judy’s magic cast on and can’t see how to now slip stitches from the left to the right needle

Welcome to KH!

I knit this sweater not so long ago and love it.
The pattern calls for a provisional cast on rather than Judy’s Magic Cast on. Could that be the problem?
You’ll need to pick up sts from the provisional later to work each of the front shoulders.
I like this version but there are a couple of variations online if you google provisional cast on.