Ripcord gives filenames for pasted from clipboard images like "Pasted image at 20.08.2021 12:20". Such filenames miss .png extension and such attachments are recognized as binary by official client and not displayed.

One can overcome this by manually appending ".png" to filenames of images pasted from clipboard.

Ripcord should append .png extension by itslef to reduce friction on image paste.

Yeah, that's weird. Slack's own client didn't used to have this problem. I guess I'll have to change Ripcord to work around it. I'm not sure why it even looks at the file extension... there's a perfectly good mime type field.