@kapa.ai - how come only some connections are failing but not all when the source connection check fails? Shouldn’t all connections related to the source fail if one connection is identifying a stream path issue with an S3 source?

The behavior you're observing could be due to a variety of factors. In Airbyte, each connection is treated independently, even if they are related to the same source. This means that one connection can fail while others succeed. For instance, in the case of an S3 source, a connection might fail if there's an issue with the specific stream path it's trying to access. This could be due to a problem with the file format, as seen in [this issue](https://github.com/airbytehq/airbyte/issues/30651) where setting up an Avro file stream in S3 as a source failed, while other file formats at the same path worked fine. Another possible reason for a connection failure could be incorrect or missing access credentials. In [this forum post](https://discuss.airbyte.io/t/1666), a user reported an error about an S3 access key while setting up a new MySQL connector source. In some cases, the issue might not be with the source connector at all. For example, in [this issue](https://github.com/airbytehq/airbyte/issues/30400), a check connection failure was reported for a MySQL source, but it was determined that the issue was not actionable from the source connector side and was likely related to IP allowlisting. So, while it might seem logical that all connections related to a source should fail if one does, the independent nature of connections in Airbyte and the variety of potential issues mean that this is not necessarily the case.