Red 8x8 Question mark texture global replacement

Hello! There are numerous questions covering this, none with a great answer that I’ve seen.

I’m building an app heavily reliant on live images from the web, and a caching plugin called unicache. We have had some corrupt files from the backend, and very rare errors with the caching plugin that result in an 8x8 texture being displayed which is a red question mark.

Many of the community answers rely on fixing the underlying problem. We’re at a place where that seems to have been solved, but is there a solid way to globally just replace that question mark texture with something more professional?

I’m not quite sure what you’re asking. However if you just need a way to detect a corrupted / non existant image, check out this question