Can an attachment for Invisalign cause a tray to not fit onto teeth correctly?

I just got attachments put on my teeth and my bottom tray on the right side is not sitting against my teeth all the way. It is elevated and it very easy to move up and down with my tongue. The other side requires force to move. The ortho assistant said it will attach to the teeth like normal when the teeth move a bit more. But I don't feel like this is correct? Is this normal to not have a tray fit onto the teeth like all of the other trays have? When I bite down I can feel it move into place.

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