@ Agustis Can you try to rename the file in lowercase and try to upload .Let me know the status
Based on the error message you can refer to The blob type is invalid for this operation.
You can either use fiddler if the failure is repro-able to capture the traces or try enabling Storage Analytics logs(https://learn.microsoft.com/en-us/azure/storage/storage-analytics)
Error 409 respons eis expected in some cases. Ex: When the container already exists with the name.
Kindly let us know if the above helps or you need further assistance on this issue.
Hope this helps!
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