Your Rocket.Chat version: 0.35.0
tagging user using @ is working only in the first line of the chat, if we use a line break and try to use @ in the second line its not working. Earlier it use to work, looks like some thing changed in the latest release.
Steps to reproduce:

@kashifnawaz123 you need to type at least one symbol at left for this:

heheheh. :smile:
it works @vetash , but is this Workaround or working as expected, Rocket i guess still need to fix it right
Yeah, I thought as the same
still present in 0.61.0
It's working on 0.65.1. It may have been fixed by the recent refactoring done in the notification system. If anybody runs into this problem again the issue can be reopened.
Most helpful comment
still present in 0.61.0