Slack File Attachment Sending Broken
Slack users cannot send file attachments after a regression caused the plus button to collapse the dialog instead of opening the file picker, blocking core workflows.
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Similar Problems
surfaced semanticallySlack Attachments Sometimes Fail to Send Due to File Size
A user reports that some attachments they try to send in Slack fail to attach because of size limits, calling it a minor but recurring annoyance.
Slack Attachment Button Stops Working After App Update
After a Slack update, the plus/attachment button in chat becomes unresponsive, preventing users from sending files or images. The issue appears to be a regression introduced in the update with no in-app workaround available.
Slack's Developer-Centric UX Excludes Non-Technical Users With Shortcut Dependencies
Slack requires memorization of keyboard shortcuts to access common communication features like emoji and GIF insertion, creating an unnecessarily high floor for non-technical users. The interface was designed for developers and has not been adapted for mixed teams where the majority of members are not power users. Adoption friction from UX complexity leads teams to consider alternatives with more approachable interfaces.
Slack Update Broke Attachment Sending for Over a Week
A Slack update in March 2026 broke the ability to send attachments on mobile, with the issue persisting unresolved for at least 9 days. The regression directly blocks file-sharing workflows for users dependent on mobile Slack for work communication.
Slack File Attachment Broken - Plus Button Collapses Dialog
Slack broke the file/image attachment flow: the plus button no longer opens a file picker and instead collapses the dialog, leaving users unable to attach files.
Problem descriptions, scores, analysis, and solution blueprints may be updated as new community data becomes available.