When Magento's image cache is cleared, either manually or automatically, all image paths change.
This means that the image paths sent to Clerk.io, no longer work.
This can easily be fixed by doing this:
- Login to my.clerk.io
- Click the Store where images are missing
- Go to Data
- Click Start New Data Sync in the upper right corner
This will start a new full sync of your products, which causes Clerk.io to get the correct image paths.
In Clerk.io's Magento extension v2.1.0 this issue is fixed, by automatically starting a Sync when the image cache is cleared.
If you are using an older version of the module, we strongly recommend upgrading to the latest version.