That CAD Blocks site has a lot of good stuff. I've added it to the list in the Free Symbols resource thread.

These CAD blocks are actually ready to use symbol catalogs, which is very neat. I first thought I would have to resort to just copy/paste from the drawing, but load them up as a symbol catalog, and they show up as proper symbols.

Note that if it is a single map, reinstalling will NOT help, as that won't change your map.

Just reinstalling the latest update won't help when restoring files to default, as that only replaces files contained in the update, i.e. things that have been updated since release, to restore original files you need to run the original installer (CC3+ base or add-on, depending on what you want to fix), and then re-run the latest update after doing that.

There isn't any restore to default feature except reinstalling. When you change the symbol catalogs, you do changes to the actual catalog and configuration files, and these are persistent. There are no "default settings" for most things in CC3+, other than to replace the various files with clean versions.

If it is just the map settings in a single map that is messed up, causing it to load wrong catalogs and tools, you need to hit :CC2PRESETS: and set the map style back to the correct style for that map type, and if you have changed the OnOpenMacro map note, revert it back to the original settings by just copying the macro commands from a fresh map in the same style.

Decided to start posting a video tutorial series intended for beginners. The first few videos are now up and can be found in my playlist here:

Sorry about your job. Hope this situation normalizes soon so people can get back to their jobs, or at least have an easier time finding a new one when not everyone is trying to hunt in the same limited pool.

At least the time isn't wasted when you spend it mapping :)