Why am I not seeing the file I just uploaded via the Custom REST API?

Feature in use: Data Source - Upload new File

Even though the API may return a 200 success status, the file may not be visible due to caching. In most cases, cached versions of the file must expire before the newly uploaded version will be visible.

Workaround

To resolve this issue, you can decrease the cache minutes value in the data source configuration. This will reduce the amount of time that the cached version of the file is stored, allowing the newly uploaded version to be visible sooner.