I made a flow that uses the Slack - Post message (V2) component. Originally, the component did not show the private channel I needed in the dropdown. I looked at the Slack account of the email I was using and discovered it didn't have access. I invited the user to the channel, it was approved by an admin, and the private channel then showed up in the dropdown and I was able to post to it with the flow.
Then I deleted that Slack - Post message (V2) step and made it again exactly the way I just described, except the private channel wouldn't show in the dropdown. The user definitely has access to the private channel in Slack.
What things can I try / settings to check / etc. to get this private channel to show in the dropdown again? Thanks