Thanks for flagging this. Just confirming this is a known issue on our end here. The acceptance/decline email notifications stopped working as expected with the rollout of the new collaborator request flow within the Dev Dashboard, and the team is working on a fix. Can’t guarantee a specific timeline, but I’ll loop back here once it’s resolved.
In the meantime you can manually check the status of pending requests under Stores in your Dev Dashboard, though I get that’s not super ideal compared to a passive notification.