Images are not updating for public viewers of my WordPress site

This is the view from my side: https://snipboard.io/dSlDEY.jpg This is how it looks when I see while logged out or when someone else view it: https://snipboard.io/19uXG0.jpg

These are feature images of my posts and I swapped these using the Enable Image Replace plugin.

I am not using any sort of caching on my WordPress site. I tried switching plugins on and off, switched between themes and asked my hosting to clear any sort of server-side cache.

Now one more thing is when you open that image on a new tab, you will see the old view but when you refresh it, it updates the view.

Just visit this link: https://freehouseoffuncoins.com/wp-content/uploads/2019/09/16K_HOF-Free-Coins_13-300×200.png

Refresh it and you will see the image changing.

Please help me, I’d be so grateful.

The page I need help with: [log in to see the link]