Add a common problems section, include wrong category and wrong show type.

Searches-Indexers-and-Trackers.md

@@ -36,6 +36,14 @@ In this test, you'll be looking for obvious errors and running some simple tests
 
 You can find this *full* trace log at [[Manual Episode Search Trace Log]] along with a pastebin link that is easier to read.
 
+## Common Problems
+
+### Wrong categories
+Incorrect categories is probably the most common cause of results showing in manual searches of an indexer/tracker, but *not* in Sonarr. The indexer/tracker *should* show the category in the search results, which should help you figure out what is missing.
+
+### Wrong show type
+The show type is another cause of poor search results. Most shows should be `Standard`. For daily shows which are typically released with a date, `Daily` should be used. Finally, there is anime where using `Anime` is *usually* right, but sometimes `Standard` can work better, so try the *other* one if you're having issues.
+
 ## Errors
 
 These are some of the common errors you may see when adding an indexer