@Gareth Vorster Thank you for reaching out to us, while researching on your issue came across this doc - https://learn.microsoft.com/en-us/entra/global-secure-access/how-to-configure-connectors where it is mentioned - Microsoft Entra Private Access does not support multi-geo connectors. The cloud service instances for your connector are chosen in the same region as your Microsoft Entra tenant (or the closest region to it) even if you have connectors installed in regions different from your default region.
Multi Geo Connector group functionality is unsupported for the GSA Private Access Apps flow. To address this, you must create/select a connector group from the same Tenant location.
Let me know if you have any further questions, feel free to post back.
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