S3 with Exoscale

[ccfu]

I have been trying to set up S3 storage with Exoscale to use file attachments but so far unsuccessfully. Does anyone have this setup working? I have added all the details in the config file and set up CORS. Typebot seems to connect to the bucket, but every time a file is uploaded it returns "file uploaded" but then immediately "invalid response" and I cannot work out why. The logs don't show anything useful for debugging either.

If anyone has attachments working with Exoscale and could point me to where I might have missed a required configuration that would be much appreciated.