Hi @Jussi Heinonen Thanks for reaching out. This seems to be an ongoing issue due to recent update of API Management extension for Azure Portal. The engineering team is developing a Hotfix for the problem that will be deployed over the next few days. Tentative ETA for Hotfix deployment is November 21st, 2022. The fix will enable the test console for services deployed
in internal VNET.
As a workaround, you can use the Developer Portal test console or any other client (e.g., Postman) to call/test APIs.
Let me know incase of further queries, I would be happy to assist you.
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