Eljon Apologies, just seen a previous screenshot where you showed this, and it doesn't look like adaptive sizing you're right. That said, I'm not able to recreate, where've you continue seeing this?
Can you send over an affected URL? What you can do is activate the Extension, go to delete one of the placeholders, and before you do so you'll get a warning indicating how much revenue % the placeholder generates for your site (which will allow you to identify which ad performs worse). However, I think we should try recreate on our end first.