Auto-filling usernames doesn't always work

[BIWI]

Any reason why this would be?

I think it's a great new addition to the site and makes it much easier to tag/reply to people. But there seems to be no rhyme nor reason why sometimes it works and others it doesn't.

(FYI I'm on a Mac, using Safari)

For more clarity - it's just happened again, the inconsistency that is. On one of the Bootcamp threads I wanted to reply to/tag a poster, but their posting name didn't come up. (That poster had posted several times before). Later in the thread when I was replying to her again, this time her name did come up.

Hi there BIWI,

Thanks for the clarification, and for flagging - that definitely doesn't sound quite right. We're going to dig a bit deeper into it.

Hi BIWI, HQ again. Could we please ask on which bootcamp thread this was, and which specific user(s) you were trying to tag?

Hi Anya
It’s on the current week 8 chat thread, and I was tagging 18pagesfrontandback both times

Hi MNHQ
This is still happening to me - currently on the week 10/final Bootcamp thread!
Any news on this? It's such a useful feature it's really frustrating when it doesn't work!