The past several days, after I save a session in a map I had regularly been updating, upon re-opening the .mxd the next morning, I've found that my .shp files are missing from under the group layer in the TOC. I am attempting to uninstall/reinstall of ArcMap, try the edit/save, reopen on another computer, among other things to see what the issue is. This is very strange and I've never encountered it before (I've moved the local version of a shapefile to another file location before and had the 'red check mark-broken link' error before, but never shapefiles completely wiped from the TOC). This is an annoyance if I have to re-upload all of my .shp files to my maps I had just edited the day before. Any ideas of what the issue is/how to fix would be greatly appreciated.
Thanks,
-Matt
