I’d take a step back and start with the basics.
- Review: Tags - Obsidian Help
- Open the Sandbox vault (F1 / Help > Sandbox vault → Open).
- Add a few random inline
#tagsand a few tags in the Properties view. - Do a search for one. Do a search for a few:
tag:#gamma tag:#alpha
In Source mode my Untitled 1 note looks like this:
Have a look at the Tags tab:
- Now do the same thing in your own vault.
If all looks good there as well you can move on to some Dataview queries (try a few different ones querying inline and YAML tags):
```dataview
LIST
WHERE contains(file.tags, "gamma")
```
If all that looks good, you can move on to trying the tutorials again and more complex queries. If not, try reinstalling Dataview or some of the other troubleshooting steps.