You can try the following steps to resolve mentioned issue:
Step-1. bin/magento indexer:reindex
You will receive a similar result as presented below:
Customer Grid index has been rebuilt successfully in 00:00:00
Category Products index has been rebuilt successfully in 00:00:00
Product Categories index has been rebuilt successfully in 00:00:00
Product Price index has been rebuilt successfully in 00:00:01
Product EAV index has been rebuilt successfully in 00:00:01
Catalog Search index has been rebuilt successfully in 00:00:01
Stock index has been rebuilt successfully in 00:00:00
Catalog Rule Product index has been rebuilt successfully in 00:00:01
Catalog Product Rule index has been rebuilt successfully in 00:00:00
Step-2. Re-generate the image catalog by using the command below via CLI:
bin/magento catalog:image:resize