2.2.4 Upgrade Lost Images

I have recently upgraded a store from 2.2.3 to 2.2.4 and for some strange and bizarre reason I have lost alot of the images that were displaying. For instance I have /images/detailed/1/40th_Anniversary_System.png displaying in the shops cart however on look at the ftp it is located here /images/detailed/0/40th_Anniversary_System.png This has happened to some 300 different product images that are now broken. Does anyone know if there is an issue with the upgrade that may cause this. We have 2 other carts that upgraded to 2.2.4 without an issue.

Thank you for your time.