SharePoint 2013: Newly created rendition not working

Recently I was facing an issue with newly created rendition, I created new rendition but the images are not showing the newly created rendition on my development server, also in image picker we not able to see the newly created rendition.

After waiting for some time as well my newly created rendition not worked. After some investigation we figured out that as renditions was previously working fine means blob cache working as expected but after adding new rendition we found that it was not working.

Solution:

We need to flush the blob cache using PowerShell.

$webApplication = Get-SPWebApplication "http://mytestdomain.com";
[Microsoft.SharePoint.Publishing.PublishingCache]::FlushBlobCache($webApplication);

After flushing the blob cache we are now able to see newly added rendition. For more details please check https://technet.microsoft.com/en-us/library/gg277249.aspx

Flush action will not be immediate, it will be queued.

Hope this will help, happy learning.