> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ghost.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Filter Property Not Working In Routing

> Working with more complex iterations of the filter property in the routes.yaml file can cause conflicts or unexpected behaviour. Here are the most common issues.

***

### Specify inverse filters

In the current beta version of Dynamic Routing it’s necessary to specify the inverse of filters using - to ensure pagination is correct. For example:

```yaml theme={"dark"}
collections:
  /es/:
    permalink: /es/{slug}/
    filter: tag:es
  /fr/:
    permalink: /fr/{slug}/
    filter: tag:fr
  /:
    permalink: /{slug}/
    filter: tag:-[fr,es]
```

### Order filters

In a collection, the post lives in the first collection where it matches the filter, so it’s important to consider the order of your filters and place more generic filters towards the end.

If you are seeing unexpected behaviour and posts living inside the wrong collection, then you may need to revise the order of your filters.