Visual Calculation not working when published to a public workspace

Hi all,

I have created a Moving Average visual calculation on the Compound Annual Growth Rate line chart in this report. (Note a version without the MA line has been published as a placeholder).

The Moving Average line works perfectly on the Desktop application, and also when publishing to my workspace. However, when publishing to a public workspace the visual doesn't work. Instead, I see:

A network error was encountered. Please check your connection to the internet. See details.

When I look at the details, I see:

Http Status Code: 403
Activity ID: a94e085d-1408-4b0b-a749-c8740db2ba10
Correlation ID: eb7ceafb-3563-0cf6-b619-aabc292bcd77
Request ID: 3e2a90ac-7dd8-ca3d-dde1-c5447702a2e9
Time: Mon Feb 24 2025 12:08:55 GMT+1100 (Australian Eastern Daylight Time)
Service version: 13.0.25310.47
Client version: 2502.2.22869-train
Cluster URI: https://wabi-australia-southeast-api.analysis.windows.net/
Activity ID: a94e085d-1408-4b0b-a749-c8740db2ba10
Request ID: 3e2a90ac-7dd8-ca3d-dde1-c5447702a2e9
Time: Mon Feb 24 2025 12:08:55 GMT+1100 (Australian Eastern Daylight Time)
Service version: 13.0.25310.47
Client version: 2502.2.22869-train
Cluster URI: https://wabi-australia-southeast-api.analysis.windows.net/

I would appreciate any ideas to resolve this.

Thank you.

Chris.