Output sends messages with wrong Stream name

[infernix]

I've created a single Slack output that sends data with attachment to a single channel. I've mapped multiple streams to this same output. Whenever streams generate a message, the message in Slack frequently contains the wrong stream name.

For example, stream A generates a message, but in Slack the message is: "New message in Graylog stream B*.

It's rather inconsistent and I haven't figured out why; perhaps a variable gets assigned incorrectly?

Or is it expected to have to create a Slack output for every mapped stream?

[alexnikitchuk]

Same issue

[kierad]

SlackMessageOutput (which seems to represent a Slack channel) has a single stream field. This does not align with the common usage, where multiple streams are pointed to a single Slack channel. It would be great to find a solution to this.