Hello!!! After finally successfully creating a mosaic dataset and properly registering the data source so that it can be uploaded as an image service, I noticed that the images would only be viewable at a very close scale. I used the "Build Overviews" tool in ArcGIS Pro to help with this issue BUT now after republishing, I'm running into this error whenever I try to view the layer in a web map in portal.

I'm wondering if there are any other solutions to this issue, possibly removing the overviews and using caching instead? I'm very inexperienced with tile caching so I'm unsure of the benefits/disadvantages of using that method instead. Here's some background: These images are scanned maps and I have around 1500 of them to add to the mosaic dataset. I need to be able to incorporate the web map in an application that allows users to search/query the images by certain attributes, but I've been getting caught up with setting up the mosaic dataset and now incorporating it into a web map. Any help + documentation is very much appreciated!