You can see the image I have attached here. The issue I am having is that sometimes when I open a map I created the layers won't work! There will be a red exclamation mark by the layer and it won't turn on. This happens to the layers I drew myself and with layers I georeferenced. I don't know how to stop this from happening. Any suggestions?
Would your layers stored in a location (network?) currently not accessible by your project and/or machine?
Here are some tips to help: