Update 5/31/2019: The latest version of Bixby client (220.127.116.11) fixes this issue.
On the latest version of the Bixby client (18.104.22.168), if you are using private submissions for on-device testing, there is currently an issue that causes Bixby to fail with an error:
`Oh there was a connection problem. Please try again later`
Our engineering teams are working hard to release a hotfix as soon as possible. We will provide a final email update once this issue is resolved.
In the meantime, we will continue to provide ad-hoc updates here.