Hi andrew hartnell ,
Welcome to Microsoft Q&A Forum, thank you for posting your query here!
I’m glad to hear you love Microsoft Azure Storage Explorer, this is an expected behavior with Azure Storage Explorer and other tools to query it, so only allows you to view up to 32 messages in a storage queue at a time.
The maximum number of messages that may be retrieved at the same time is 32.
This is a limitation from the REST API itself. If you want to fetch more messages, you would need to make multiple HTTP requests with each request asking for a maximum of 32 messages from the Storage Queue service.
https://learn.microsoft.com/en-us/rest/api/storageservices/get-messages
If you have any other questions or are still running into more issues, let me know in the "comments" and I would be happy to help you
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