I believe there are other reports of the same thing but I didn't both look.
When you have a Zyra on your team and all of a sudden two plant show up in the slots for where you would buy and sell from the shop. You can't sell them because they don't have a cost.
Which halts your progression, and can lead to losses because you couldn't complete a set for a full three star, or add another champion to the pool for later use. If there was only an area for picture upload I would love that. Lastly if intentionally implemented please set so. Or is it my PC doing something to me.