When using the publish to S3 plugin in combination with the flexible-publish plugin, it is impossible to configure an S3 bucket correctly and save the configuration. After selecting the bucket, it is not possible to select storage class and bucket region (both lists remain empty). After saving the job configuration and reopening it, even the previously selected S3 profile is no longer selected.

For me that's a pretty big issue because artifacts may only be published to S3 when the build does not fail. Up to now, it is impossible do define conditions directly in the configuration of the S3 plugin itself, so I tried to use the flexible-publish as a wrapper. Unfortunately that leads to the issue already mentioned.