Chemistry Plugin preview isn't 100% reliable

<img width="888" height="223" alt="Image" src="https://github.com/user-attachments/assets/c7bb2e01-bb3f-4b98-8532-6258d2336b98" />

I've also noticed this on rare occasions...marking as low priority because switching to View mode or refreshing the page will show the formatted preview anyways.