OpenSearch dashboards not yet complete as expressions or transforms cause 500 errors

[Thysk]

Adding an expression or a transform to any of the OpenSearch Dashboards cause a break in the visualisation.

Where in ElasticSearch the visualisations work to parse information from query A and B, in OpenSearch I cannot currently recreate the same visualisations that require more than one query to complete.

For example the Transfer Throughput panel requires a query for the data moved and the time it took to move that data, both easily gotten through payload.bytes and payload.duration, but dividing one by the other currently causes issues.