Cannot access Data Catalog with "TypeError: Failed to fetch" message

When you try to access the data catalog, you may get a “TypeError: Failed to fetch” error and the list may not be displayed.

If this is the case, check to see if your firewall or security software (the below screenshot is an example of NetBarrier) allows Exploratory (nwjs), nwjs Helper, and nwjs Helper (Render) to connect to external networks.

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