Issue with Map Cluster Images

Hi, I created a custom cluster image then uploaded to the plugin files. I didn’t like how it looked so I decided to stick with the default. I replaced my image with the original file…but the original image won’t load. I’ve tried to deactivate and reactivate the plugin, the issue persists. I’ve also tried deleting the plugin and reinstalling, but the issue remains. I’ve cleared my browser history and viewed with different browsers. I don’t know why the old image is still loading.

Any ideas? Thank you.